* 1 History
o 1.1 Predecessor Firm, 1907-1908
o 1.2 1926–1942
o 1.3 1946–1954
o 1.4 1955–1960
o 1.5 1961–1970
o 1.6 1970–1982
o 1.7 1982–1988
o 1.8 1989–1997
o 1.9 1997–2004
o 1.10 2005–2010
* 2 Style trademarks and logo
* 3 Engines
o 3.1 Carburetors
* 4 Models
* 5 Evolution of Pontiac models
* 6 See also
* 7 Notes
* 8 References
* 9 External links
* 10 Further reading
1946–1954
From 1946-1948, all Pontiac models were essentially 1942 models with minor changes. The Hydra-matic automatic transmission was introduced in 1948 and helped Pontiac sales grow even though their cars, Torpedoes and Streamliners, were quickly becoming out of date.
The first all-new Pontiac models appeared in 1949. Newly redesigned, they sported such styling cues as lower body lines and rear fenders that were integrated in the rear-end styling of the car.
Along with new styling came a new model. Continuing the Native American theme of Pontiac, the Chieftain line was introduced to replace the Torpedo. These were built on the GM B-Body platform and featured sportier styling than the more conservative Streamliner. In 1950, the Catalina trim-level was introduced as a sub-series.
In 1952, Pontiac discontinued the Streamliner and replaced it with additional models in the Chieftain line built on the GM A-body platform. This single model line continued until 1954 when the Star Chief was added. The Star Chief was created by adding an 11-inch (280 mm) extension to the A-body platform creating a 124-inch (3,100 mm) wheelbase.
The 1953 models were the first to have one-piece windshields instead of the normal two-piece units. While the 1953 and 1954 models were heavily re-worked versions of the 1949-52 Chieftain models, they were engineered to accommodate the V-8 engine that would appear in the all-new 1955 models.
1955–1960
Completely new bodies and chassis were introduced for 1955. A new 173-horsepower (129 kW) overhead valve V-8 engine was introduced. (see Engines section below). Sales increased. With the introduction of this V-8, the six cylinder engines were discontinued; a six-cylinder engine would not return to the full-size Pontiac line until the GM corporate downsizing of 1977. An overhead cam six cylinder engine was used in the Tempest model line starting in 1966, as well as on the Firebird. It was the first mass produced engine in America utilizing an overhead camshaft configuration.[2]
In 1956 when Semon "Bunkie" Knudsen became general manager of Pontiac, with the aid of his new heads of engineering, E. M. Estes and John DeLorean, he immediately began reworking the brand's image. One of the first steps involved the removal of the famous trademark "silver streaks" from the hood and deck lid of the 1957 models just weeks before the '57s were introduced. Another step was introducing the first Bonneville—a limited-edition Star Chief convertible that showcased Pontiac's first fuel-injected engine. Some 630 Bonnevilles were built for 1957, each with a retail price of nearly $5800. While new car buyers could buy a Cadillac for that price, the Bonneville raised new interest in what Pontiac now called "America's No. 1 Road Car."
The Bonneville, a sub-series of the Star Chief introduced with the 1957 models, then, became its own line. These were built on the 122-inch (3,100 mm) wheelbase of the A-body platform. A 1958 Tri-Power Pontiac Bonneville was the pace car for that year's Indianapolis 500. Also, 1958 was the last year Pontiac Motor Division would bear the "Indian" motif throughout the vehicle.
With the 1959 model year, Pontiac came out with its "V" emblem, with the star design in the middle. The "V" design ran all the way up the hood from between the split grille, and on Starchief Models, had 8 chrome stars from the emblem design bolted to both sides of the vehicle as chrome trim. Knudsen saw to it that the car received a completely reworked chassis, body and interior styling. Quad headlamps, and a longer, lower body were some of the styling changes.
The Chieftain line was renamed Catalina; Star Chief was downgraded to replace the discontinued Super Chief series, and the Bonneville was now the top of the line, coming equipped with a fuel-injection system. The Star Chief's fourdoor "Vista" hardtop was also shared by the Bonneville. This coincided with major body styling changes across all models that introduced increased glass area, twin V-shaped fins and lower hood profiles. Because of these changes, Motor Trend magazine picked the entire Pontiac line as 1959 Car of the Year. The '59s have a five-inch (127 mm) wider track, because Knudsen noticed the new, wider bodies looked awkward on the carried-over 1958 frames. The new "Wide-Track" Pontiacs not only had improved styling, but also handled better—a bonus that tied into Pontiac's resurgence in the marketplace.
The 1960 models saw a complete reskinning, which removed the tailfins and the distinctive split grille (which Ford copied on the final Edsel models for 1960). Ventura was introduced, a more luxurious hardtop coupe and the Vista 4-door hardtop now being built on the shorter 122-inch (3,100 mm) wheelbase platform, with it falling between the Catalina and Star Chief models. The Ventura featured the luxury features of the Bonneville in the shorter, lighter Catalina body.
1961–1970
The 1961 models were similarly reworked. The split grille returned, as well as all-new bodies and a new design of a perimeter-frame chassis for all its full-size models (something which would be adopted for all of GM's intermediate-sized cars in 1964, and all its full-sized cars in 1965). These new chassis allowed for reduced weight and smaller body sizes.
But a complete departure in 1961 was the new Tempest, one of the three BOP (Buick-Olds-Pontiac) "compacts" introduced that year, the others being the Buick Special and Skylark and Oldsmobile F-85 and Cutlass. Toward the end of the 1961 model year, a fancier version of the Tempest, called "LeMans", was introduced. A mispronunciation of the famous 24 Hours of Le Mans auto race in France was emphasized.
All three were unibody cars, dubbed the "Y-body" platform, combining the frame and the body into a single construction, making them comparatively lighter and smaller. All three put into production new technology that GM had been working on for several years prior, but the Tempest was by far the most radical. A seven-foot flexible steel shaft, rotating at the speed of the engine, delivered power from the front-mounted engine to a rear-mounted transaxle through a "torque tube." Because it was curved when installed, the so-called "propeller shaft" was dubbed "ropeshaft." The design's father was none other than DeLorean, and its advantage was twofold: first, the car achieved close to a 50/50 weight balance that drastically improved handling; and second, it enabled four-wheel independent suspension. This was a feature that no other American car could match save the Corvair, as well as eliminating the floor "hump" that usually came with front engined rear drive cars.
Though the Tempest's transaxle was similar to the one in the Corvair, introduced the year before, it shared virtually no common parts. GM had planned to launch a Pontiac version of the Corvair, but "Bunkie" Knudsen—whose niece had been seriously injured in a Corvair crash—successfully argued against the idea. Instead, DeLorean's "ropeshaft" design was greenlighted.
Contemporary rumors of the ropeshaft's demise due to reliability problems are unfounded; the ropeshaft's durability and performance had been proven in tests in full-size Pontiacs and Cadillacs in 1959, and only adapted to a smaller car in 1960. The Tempest won the Motor Trend "Car of the Year" award in 1961—for Pontiac, the second time in three years. DeLorean's vision has been further vindicated by the adoption of similar designs in a slew of modern high-performance cars, including the Porsche 928, the Corvette C5, and the Aston Martin DB9.
Unless customers checked an option, the Tempest's powerplant was a 194.5 ci inline-four-cylinder motor, derived from the right bank of the venerable Pontiac 389 V8, enabling it to be run down the same production line as the 389, saving costs for both the car's customers and Pontiac. Pontiac engineers ran early tests of this motor by literally cutting off the left bank of pistons and adding counterweights to the crankshaft, and were surprised to find it easily maintained the heaviest Pontiacs at over 90 miles per hour (140 km/h). In production, the engine received a crankshaft designed for just four cylinders, but this didn't completely solve its balance issues. The engine gained the nickname "Hay Baler" because of it tendency to kick violently, like the farm machine, when its timing was off.
The aforementioned Buick 215 V8, was ordered by less than two percent of its customers in the two years it was available, 1961 and 1962. Today, the 215 cars are among the most sought-after of all Tempests. In 1963, Pontiac replaced the 215 with a "new" 326, an iron block mill that had the same external dimensions and shared parts with the 389, but an altered, reduced bore. The car's body and suspension was also changed to be lower, longer and wider. The response was that more than half of the 1963 Tempests and LeMans (separate lines for that one year only) were ordered with the V8, a trend that did not go unnoticed by management. The next year, the performance V8 option was badged as the now-famous GTO. The Tempest's popularity helped move Pontiac into third place among American car brands in 1962, a position Pontiac would hold through 1970. The Buick 215 V8 would remain in production for more than thirty five years, being used by Britain's Rover Group after it had bought the rights to it. GM attempted to buy the rights back, however, Rover wished, instead, to sell the engines directly.
In 1961, Knudsen had moved to Chevrolet and Estes had taken over as general manager. Estes continued Knudsen's work of making Pontiac a performance-car brand until 1964, when John DeLorean replaced Estes as general manager, and he too continued in the same direction. Pontiac capitalized on the emerging trend toward sportier bucket-seat coupes in 1962 by introducing the Grand Prix. Although GM officially ended factory support for all racing activities across all of its brands in January 1963, Pontiac continued to cater to performance car enthusiasts by making larger engines with more power available across all model lines. For 1963, the Grand Prix received the same styling changes as other full-sized Pontiacs such as vertical headlights and crisper body lines, but also received its own squared-off roofline with a concave rear window, along with less chrome.
For 1964, the Tempest and LeMans' transaxle design was dropped and the cars were redesigned under GM's new A body platform; frame cars with a conventional front-engine, rear-wheel-drive layout. The most important of these is the GTO, short for "Gran Turismo Omologato," the Italian for "Grand Touring, Homologated" used by Ferrari as a badge to announce a car's official qualification for racing. In spite of a GM unwritten edict against engines larger than 327 ci (the size of the Corvette's) in intermediate cars, DeLorean (with support from Jim Wangers from Pontiac's ad agency), came up with the idea to offer the GTO as a dealer option package that included a 389 ci engine rated at 325 or 348 horsepower (260 kW).
The entire Pontiac lineup was honored as Motor Trend's Car of the Year for 1965, the third time for Pontiac to receive such honors. The February, 1965 issue of Motor Trend was almost entirely devoted to Pontiac's Car of the Year award and included feature stories on the division's marketing, styling, engineering and performance efforts along with road tests of several models.
Due to the popularity of the GTO option, it was split from being an option on the Tempest LeMans series to become the separate GTO series. On the technology front, 1966 saw the introduction of a completely new overhead camshaft 6-cylinder engine in the Tempest, and in an industry first, plastic grilles were used on several models.
The 1967 model year saw the introduction for the Pontiac Firebird pony car, a variant of the Chevrolet Camaro that was the brand's answer to the hot-selling Ford Mustang. Intermediate sized cars (Tempest, LeMans, GTO) were mildly facelifted but the GTO lost its Tri-Power engine option though it did get a larger 400 cubic-inch V8 that replaced the previous 389. Full-sized cars got a major facelift with rounder wasp-wasted bodylines, a name change for the mid-line series from Star Chief to Executive and a one-year-only Grand Prix convertible. The 1968 Bonneville models had copied styling from both the front and rear of the Edsel. The front view of the 1959 Edsel and the rear view of the 1958 Edsel bear a striking resemblance. 1968 introduced the Endura 'rubber' front bumper on the GTO, the precursor to modern cars' integrated bumpers, and the first of a series "Ram Air" engines, which featured the induction of cold air to the carburetor(s) for more power, and took away some of the sting from deleting the famous Tri-Power multiple carburation option from the engine line up. This line culminated in the Ram Air IV and V round port cylinder headed engines. The Ram Air V garnered much auto press publicity, but only a relative few were made available for sale. Full-sized cars and intermediates reverted from vertical to horizontal headlights while the sporty/performance 2+2 was dropped from the lineup.
For 1969, Pontiac moved the Grand Prix from the full-sized lineup into a G-body model of its own based on the A-body intermediate chassis, but with distinctive styling and long hood/short deck proportions to create yet another niche product - the intermediate-sized personal-luxury car that offered the luxury and styling of the higher priced personal cars such as the Buick Riviera and Ford Thunderbird but for a much lower pricetag. The new Grand Prix was such a sales success in 1969 as dealers moved 112,000 units - more than four times the number of Grand Prixs sold in 1968. Full-sized Pontiacs were also substantially restyled but retained the same basic underbody structure and chassis that debuted with the 1965 model - in fact the rooflines for the four-door pillared sedans and Safari wagons were the same as the '65 models, while the two-door semi-fastback design gave way to a squared-off notchback style and four-door hardtop sedans were also more squared off than 1967-68 models. The GTOs and Firebirds received the Ram Air options, the GTO saw the addition of the "Judge" performance/appearance package, and the Firebird also got the "Trans Am" package. Although originally conceived as a 303 cubic inch model to compete directly in the Trans Am racing series, in a cost saving move the Pontiac Trans Am debuted with the standard 400 cubic inch performance engines. This year also saw De Lorean leaving the post of general manager to accept a similar position at GM's Chevrolet division. His replacement was F. James McDonald.
The 1969 Firebirds received a heavy facelift but otherwise continued much the same as the original 1967 model. It was the final year for the overhead cam six-cylinder engine in Firebirds and intermediates, and the Firebird convertible (until 1991). Production of the 1969 Firebirds was extended into the first three months of the 1970 model year (all other 1970 Pontiacs debuted Sept. 18, 1969) due to a decision to delay the introduction of an all-new 1970 Firebird (and Chevrolet Camaro) until after the first of the year - Feb. 26, 1970 to be exact.
1970–1982
Increasing insurance and fuel costs for owners coupled with looming Federal emissions and safety regulations would eventually put an end to the unrestricted, powerful engines of the 1960s. Safety, luxury and economy would become the new watch-words of this decade. Engine performance began declining in 1971 when GM issued a corporate edict mandating that all engines be capable of using lower-octane unleaded gasoline, which led to dramatic drops in compression ratios, along with performance and fuel economy. This, coupled with trying to build cars as plush as GM's more luxurious Buicks and Oldsmobiles, contributed to the start of a slow decline of Pontiac in 1971.[3]
In mid-1971 Pontiac introduced the compact, budget-priced Ventura II (based on the third generation Chevrolet Nova). This same year, Pontiac completely restyled its full-sized cars, moved the Bonneville, and replaced it with a higher luxury model named the Grand Ville, while Safari wagons got a new clamshell tailgate that lowered into the body while the rear window raised into the roof.
1971-1976 model full-size station wagons featured a 'Clamshell' design where the rear power-operated glass slid up into the roof as the tailgate (manually or with power assist), dropped below the load floor. The power tailgate, the first in station wagon history, ultimately supplanted the manual tailgate, which required marked effort to lift from storage. The Clamshell system — heavy and complex — remained un-adopted by any other manufacturer.
The 1972 models saw the first wave of emissions reduction and safety equipment and updates. GTO was a now sub-series of the LeMans series. The Tempest, was dropped, after being renamed 'T-37' and 'GT-37' for 1971. The base 1972 mid-sized Pontiac was now simply called LeMans.
MacDonald left the post of general manager to be replaced by Martin J. Caserio in late 1972. Caserio was the first manager in over a decade to be more focused on marketing and sales than on performance.
For 1973, Pontiac restyled its personal-luxury Grand Prix, mid-sized LeMans and compact Ventura models and introduced the all-new
Grand Am as part of the LeMans line. All other models including the big cars and Firebirds received only minor updates. Again, power dropped across all engines as more emissions requirements came into effect. The 1973 Firebird Trans Am's factory applied hood decal, a John Schinella restylized interpretation of the Native American fire bird, took up most of the available space on the hood. Also in 1973, the new Super Duty 455 engine ("Super Duty" harkening back to Pontiac's Racing Engines) was introduced. Although it was originally supposed to be available in GTOs and Firebirds, only a few SD 455 engines made it into Firebird Trans Ams that year. One so equipped was tested by 'Car and Driver' magazine, who proclaimed it the last of the fast cars. But the pendulum had swung, and the SD 455 only hung on one more year in the Trans Am.
All Federal emissions and safety regulations were required to be in full effect for 1974 causing the demise of two of the three iterations of the big 455 cubic inch engines after this year. The last version of the 455 would hang on for two more years before being discontinued.
For 1975, Pontiac introduced the new sub-compact Astre, a version of the Chevrolet Vega. This was the brand's entry into the fuel economy segment of the market. Astre had been sold exclusively in Canada from 1973. It was offered through the 1977 model year. 1975 would also see the end of Pontiac convertibles for the next decade.
The 1976 models were the last of the traditional American large cars powered by mostly big block V8 engines. After this year, all GM models would go through "downsizing" and shrink in length, width, weight and available engine size. The 1976 Sunbird, based on the Chevrolet Vega and Monza's equivalent, joined the line. It was first offered as a Notchback, with a Hatchback body style added in 1977. The Vega Wagon body style was added in 1978, Sunbird Safari Wagon, replacing the Astre Safari Wagon. The Sunbird was offered in its rear-wheel-drive configuration through the 1980 model year. (Sunbird Safari wagon through 1979.)
For 1977, Pontiac replaced the Ventura with the Phoenix, a version of Chevrolet's fourth generation Nova. Pontiac also introduced its 151 cubic inch "Iron Duke" 4-cylinder overhead valve engine. It was first used in the 1977 Astre, replacing Astre's aluminum-block 140 cubic inch Vega engine. The 'Iron Duke' engine would later go into many GM and non-GM automobiles into the early 1990s. The 151 cubic inch L4 and the 301 cubic inch V-8 were the last two engines designed solely by Pontiac. Subsequent engine design would be accomplished by one central office with all designs being shared by each brand.
The remainder of the 1970s and the early 1980s saw the continued rise of luxury, safety and economy as the key selling points in Pontiac products. Wire-spoked wheel covers returned for the first time since the 1930s. More station wagons than ever were being offered. Padded vinyl roofs were options on almost every model. Rear-wheel drive began its slow demise with the introduction of the first front-wheel drive Pontiac, the 1980 Phoenix (a version of the Chevrolet Citation). The Firebird continued to fly high on the success of the 'Smokey and the Bandit' film, still offering Formula and Trans Am packages, plus a Pontiac first- a turbocharged V-8, for the 1980 and 1981 model years. Overall, Pontiac's performance was a shadow of its former self, but to give credit where due, Pontiac Motor Division did more with less than most other brands were able to in this era.
1982–1988
Introduced in 1982, the wedge shaped Firebird was the first major redesign of the venerable pony car since 1970. Partly due to the hugely successful NBC television series Knight Rider, it was an instant success and provided Pontiac with a foundation on which to build successively more performance oriented models over the next decade. The Trans Am also set a production aerodynamic mark of .32 cd.
The next step in Pontiac's resurgence came in the form of its first convertible in nine years. GM adapted the J-body cars. The all-new for 1982 J2000 (later renamed Sunbird) had a convertible as part of its line.
Next came the 1984 Fiero. This was a major departure from anything Pontiac had produced in the past. A two-seat, mid-engined coupe, the Fiero was targeted straight at the same market that Semon Knudsen had been aiming for in the late 1950s: the young, affluent buyer who wanted sporting performance at a reasonable price. The Fiero was also an instant success and was partially responsible for Pontiac seeing its first increase in sales in four years.
Pontiac also began to focus on technology. In 1984, a Special Touring Edition (STE) was added to the 6000 line as a competitor to European road cars such as the Mercedes 190. The STE sported digital instruments and other electronics as well as a more powerful V-6 and retuned suspension. Later iterations would see some of the first introductions on Pontiacs of anti-lock brakes, steering wheel mounted radio controls and other advanced features.
With the exception of the Firebird and Fiero, beginning in 1988 all Pontiacs switched to front-wheel drive platforms. For the first time since 1970, Pontiac was the number three domestic car maker in America. Pontiac's drive to bring in more youthful buyers was working as the median age of Pontiac owners dropped from 46 in 1981 to 38 in 1988.
1989–1997
With the focus back on performance, Pontiac was once again doing what it did best. Although updating and revamping continued throughout the 1990s, the vast change seen during the 1980s did not. The period between 1989 and 1997 can best be described as one of continuous refinement. Anti-lock brakes, GM's Quad-4 engine, airbags and composite materials all became standard on Pontiacs during this time.
All new models were produced but at more lengthy intervals. The 1990 model year saw the launch of Pontiac's first minivan and light truck, the Trans Sport. The Sunbird was replaced with the (still J-body) Sunfire in 1995.
Most significantly, an all new Firebird bowed in 1993. It was powered by either a 3.4L V-6 with 160 hp (120 kW), or in TransAm guise a roaring 275 hp (205 kW) L-T1, which was a 5.7L (346c.i.) V-8, and could be backed by a T-56 six speed manual (which was the same transmission found in contemporary Corvettes and Vipers). This new Firebird easily outperformed its main rival, the Ford Mustang, but didn't do as well in the marketplace due to the Mustang's superior image and refinement, particularly in the interior.
1997–2004
Beginning in 1996, Pontiac began mining its historic past. This was the last year for the 6th generation Grand Prix. 1997 led the way for an all new Grand Prix, which debuted with the Wide Track chassis making a return spearheaded by the "Wider is Better" advertising campaign. In addition, the GTP trim level was added to the Grand Prix. It featured a supercharged 3.8L V-6 putting out 240 hp (180 kW) and 280 ft·lbf (380 N·m) of torque. It was only available with an automatic with front wheel drive so its sporting appeal was limited, but it made a compelling case against the Accord/Camry.
The 1999 model year saw the replacement of the Trans Sport with the larger Montana minivan. The year 2000 marked the first redesign of the Bonneville, since 1992. Based on the G-Body, the same as the Oldsmobile Aurora and Buick LeSabre, the car was more substantial feeling all around.
In 1998 the Firebird was updated. It featured sleeker styling and improved amenities. The TransAm received the LS-1 motor which produced 305 hp (227 kW). The WS6 option saw this number increase to 320 hp (240 kW) and the addition of Ram Air and stiffer springs. However, despite handily outperforming the redesigned 1999 Mustang, the Firebird was not nearly as large a sales success. In 2002 both the Firebird/Trans Am and Camaro were discontinued as a result of declining sales and a saturated sport market. Some speculate that it was due to the fact that GM was more focused on its more profitable body-on-frame design trucks and SUVs. The coupe version of the Grand Prix was also discontinued.
In 2003, it was announced that the Grand Prix would be in its last year of its generation, with an improved 7th generation on the way for 2004.
In 2004 the re-introduction of the Pontiac GTO (based on the Holden Monaro from Australia) took place, effectively replacing the spot left by the TransAm. The GTO was also initially powered by the LS-1 V8. It had an independent rear suspension and a much improved interior. It was also heavier and looked boring by the standards of its market segment. This, and the fact that it was competing against an all new Mustang, combined to make it a sales flop, despite the addition of the 400 hp (300 kW) LS-2. The GXP trim level was also introduced, replacing the SSEi name on the Bonneville. The Bonneville GXP featured a 4.6 Northstar V8, borrowed from Cadillac, and replaced the Supercharged 3800 Series II. The redesigned Grand Prix made its appearance, and featured a GT and GTP trim level. The GTP's new 3.8L supercharged V-6 now made 260 horsepower (190 kW), up 20 from the previous generation. TAPshift was also introduced as well as a Competition Group package (Comp G).
[edit] 2005–2010
Pontiac went through a complete product revamping through this period. The Grand Am was replaced with the mid-size G6 in 2004. The Bonneville ended production in 2005 after nearly 50 years of production. Although it was not directly replaced, the RWD G8 serves as an initial replacement. The Solstice concept shown in 2003 was approved for production as roadster. Sales started for the 2006 model year following the launch of the hardtop coupe in 2008. The controversial and slow selling Aztek was finally phased out and replaced by the Torrent, which was identical to the Chevrolet Equinox. The Sunfire was discontinued in 2005 along with the Cavalier and its replacement, the G5, didn't appear until the 2007 model year.
The Grand Prix ended production in 2008 and the launch of the Australian-built RWD G8 commenced. The G8 gained positive reception for its high performance and low costs. Many noted the G8 as the poor man's BMW M5, due to similar performance but at a much cheaper price. The Holden Ute was scheduled to be launched as the G8 ST before it was cancelled in January 2009 due to GM's financial situation. It was later announced that the G8 may not see a second generation.
Towards the end of the decade many rumors began spreading that Pontiac would become completely reliant on RWD. Reports ranged from a compact sedan based on the Alpha platform to a new RWD G6 for the 2013 model year. Many reports suggested that the Trans Am/Firebird would return after GM confirmed the rebirth of the Camaro, however, no reports confirmed this.
On December 2, 2008, General Motors announced that it was considering eliminating numerous brands, including Pontiac, in order to appease Congress in hope of receiving a 25 billion dollar loan.[4] On February 17, 2009, GM originally proposed the elimination of its Saturn division, the sale of Saab, and either the sale or elimination of Hummer, depending on whether a buyer could be found quickly. In the original plan GM also clarified that Pontiac would have begun to focus on "niche" models aimed at the "youthful and sporty" segment, but did not provide specifics. Pontiac was to trim its number of models to four,[5] although there was talk of retaining only one model.[6] By April 2009 several automotive websites and business publications were reporting that GM was doing a study suggesting it might eliminate the brand altogether, along with sister truck brand GMC.[7][8][9] On April 23 a report was published[10] stating the company would be dropping the Pontiac brand while preserving the GMC truck line, as well as the Chevrolet, Cadillac, and Buick brands. The decision to eliminate Pontiac was made primarily due to the increasing threat of a bankruptcy filing if the June 1 deadline could not be met.[11] On April 27, 2009, GM officially announced that Pontiac would be dropped and that all of its remaining models would be phased out by the end of 2010.[12][13]
General Motors will cut an additional 7,000 to 8,000 factory jobs in the United States and shed 2,600 dealers by 2010 under a revised business plan developed with the Obama administration. GM Chief Executive Officer Fritz Henderson said the Pontiac brand would be closed by 2010, calling it an “extremely personal decision.” In addition to speeding up decisions on Saturn, Saab and Hummer, GM will be left with four brands – Chevrolet, Buick, GMC and Cadillac.[14]
In early May 2009, Jim Waldron, a Davison, Michigan, Pontiac dealer, announced that he was interested in purchasing the Pontiac brand and logos, and had found financing to purchase them as well as some soon-to-be shuttered GM plants in order to build cars. However, GM had already decided to retire the brand as it has begun to sell off its remaining inventory and said that, unlike Saturn, the brand was not for sale.
The last American Pontiac, a 2010 G6, was built on November 25, 2009, at the Orion Assembly plant. No public farewell took place, although a group of plant employees documented the event. In December 2009, the last Pontiac-branded vehicle to roll off an assembly line was in the Canadian-market Pontiac G3 Wave, manufactured in South Korea by GM Daewoo.
The Pontiac brand was pulled after the 2009 model year in Mexico and the brand was renamed Matiz, selling only one vehicle, the Matiz G2 (Matiz's logo is similar to Pontiac's).
Pontiac became the second brand General Motors has eliminated in six years. Oldsmobile met the same fate in 2004 after being more slowly phased out over four years. Pontiac also became the ninth North American automobile brand since 1987 to be phased out, after Merkur, Passport, Asüna, Geo, Plymouth, American Motors (AMC) (renamed Eagle in 1988, only to be phased out a decade later), and Oldsmobile.
In January 2010, Saab was purchased by the Dutch auto manufacturer Spyker Cars and was renamed "Saab Spyker Cars."[18] 2010 would also see the end of the Saturn and Hummer brands.
Style trademarks and logo
A Native American headdress was used as a logo until 1956. This was updated to the currently used Native American red arrowhead design for 1957. The arrowhead logo is also known as the Dart.
Besides the logo, another identifying feature of Pontiacs were their "Silver Streaks" -- one or more narrow strips of stainless steel which extended from the grille down the center of the hood. Eventually they extended from the rear window to the rear bumper as well, and finally; along the tops of the fins. Although initially a single band, this stylistic trademark doubled to two for 1955 - 1956. The Streaks were discontinued the same year the Indian Head emblems were; 1957.
Other long-familiar styling elements were the split grille design (from 1959 onward), pointed 'arrowhead' nose (in the 1960s and 70s), and "grilled-over" (in the 1960s), or multiple-striped taillights. This later feature originated with the 1963 Grand Prix, and although the '62 Grand Prix also had rear grillework, the taillight lenses were not behind it. Less longstanding but equally memorable is the 'cladding' common on the doors and fenders of Pontiacs produced in the 1980s and 90s. Rather than minimizing the side bumper, Pontiac designers put two troughs going along the length. Reviews were generally negative but bumpers with this appearance were found on nearly all Pontiacs until the arrival of the G6. From 2004 onwards, new Pontiacs had cleaner, more premium styling, but retained the traditional split grille.
[edit] Engines
Main article: Pontiac V8 engine
Pontiac engineer Clayton Leach designed the stamped steel valvetrain rocker arm, a simplified and reliable alternative to a bearing-equipped rocker. This design was subsequently picked up by nearly every OHV engine manufacturer at one point or another.
Pontiac began work on a V-8 configuration in 1946. This was initially intended to be an L-head engine, and 8 experimental units were built and extensively tested by the end of the 1940s. But testing comparisons to the OHV Oldsmobile V-8 revealed the L-head could not compete performance-wise. So, in addition to building a new Pontiac Engineering building in 1949-1951, the decision to re-direct the V-8 to an OHV design delayed its introduction until the 1955 model year.
In mid-1956, Pontiac introduced a higher-powered version of its V-8. Among other things, this version of the engine was equipped with a high performance racing camshaft and dual 4-barrel carburetors. This was the first in a series of NASCAR-ready Super-Tempest and Super-Duty V-8 engines and introduced the long line of multi-carburetor equipped engines that saw Pontiac become a major player during the muscle car and pony car era of the 1960s.
Pontiac's second generation V-8 engines shared numerous similarities, allowing many parts to interchange from its advent in 1959 to its demise in 1979. Sizes ranged from 265 cubic inch to 455 cubic inch. This similarity (except the 301 & 265) makes rebuilding these engines relatively easier. This feature also made it possible for Pontiac to invent the modern muscle car, by the relatively simple process of placing its second largest-displacement engine, the 389 cid, into its mid-size car, the Le Mans, creating the Pontiac GTO.
From their inception in the 1950s until the early 1970s, Pontiac engines were known for their performance. The largest engine was a massive 455 cubic inch V-8 that was available in most of their mid-size, full-size and sports car models. At the height of the horsepower era, Pontiac engines reached a powerful 390 rated horsepower (SAE gross), though other engines achieved considerably higher outputs in actuality. Federal emissions laws eventually brought the horsepower era to a close and resulted in a steady decline for Pontiac's engines. One holdout to this industry-wide slide was the Super Duty 455 engine of 1973-1974. Available only in the Firebird Formula and Trans Am models, this was rated at 310 hp (230 kW) net initially but after having issues passing EPA emissions tests, the camshaft was changed to the old RA III cam and with the change, came a 290 hp (220 kW) net rating. The engine was the pinnacle of Pontiac engine development and was a very strong performer that included a few race-specific features, such as provisions for dry-sump oiling. This engine and its legacy drive the SD Trans Ams and Formulas as the one of the more, if not the most, desirable Pontiacs ever produced.
The only non-traditional Pontiac V-8 engines were the 301 cubic inch and the smaller displacement 265 cubic inch V-8s. Produced from 1977 through 1981, these engines had the distinction of being the last V-8s produced by Pontiac; GM merged its various brand's engines into one collectively shared group in 1980, entitled General Motors Powertrain. Interestingly, the 301 had a 4-inch (100 mm) bore and 3-inch (76 mm) stroke, identical to the vaunted Chevrolet small-block engine and Ford Boss 302 engine.
Pontiac engines were not available in Canada, however, but were replaced with Chevrolet engines of similar size and power, resulting in such interesting and unusual (at least to American car fans) models as the Beaumont SD-396 with a Chevrolet big-block 396 cubic inch V-8.
[edit] Carburetors
PMD originally used Carter 1-barrel carburetors for many years, but by the time of the second generation V-8 engines had switched mostly to 2-barrel offerings. These also were the basis for the Tri-Power setups on the engines.
The Tri-Power setup included one center carburetor with idle control and two end carburetors that did not contribute until the throttle was opened more than half way. This was accomplished two ways, mechanically for the manual transmission models, and via a vacuum-switch on the automatics. This went through various permutations before being banned by GM as a factory installed option in 1967, and totally in 1968.
PMD also had a square-bore 4-barrel at the time, but this was rated at a lower power than the Tri-Power. This carburetor was later replaced by the Quadrajet, a spread bore. 'Spread-bore' refers to the difference in sizes between the primaries and secondaries.
By the end of the muscle car era, the QuadraJet setup had become the nearly ubiquitous choice on PMD engines, due to its excellent economy and power characteristics. While QuadraJets have been occasionally derided as being poor performers, with proper understanding and tuning it can compete at most levels with other designs short of the full race inspired set-ups such as the Holley Double-Pumpers, which incorporated accelerator pumps on the primary and secondary carburetor circuits.
This Q-jet design proved good enough to last 1990 (Oldsmobile V8 applications), with added computer controls in order to meet federal and CARB standards.
pontiac
pontiac
pontiac engine
red pontiac
pontiac wallpepr
o 1.1 Predecessor Firm, 1907-1908
o 1.2 1926–1942
o 1.3 1946–1954
o 1.4 1955–1960
o 1.5 1961–1970
o 1.6 1970–1982
o 1.7 1982–1988
o 1.8 1989–1997
o 1.9 1997–2004
o 1.10 2005–2010
* 2 Style trademarks and logo
* 3 Engines
o 3.1 Carburetors
* 4 Models
* 5 Evolution of Pontiac models
* 6 See also
* 7 Notes
* 8 References
* 9 External links
* 10 Further reading
1946–1954
From 1946-1948, all Pontiac models were essentially 1942 models with minor changes. The Hydra-matic automatic transmission was introduced in 1948 and helped Pontiac sales grow even though their cars, Torpedoes and Streamliners, were quickly becoming out of date.
The first all-new Pontiac models appeared in 1949. Newly redesigned, they sported such styling cues as lower body lines and rear fenders that were integrated in the rear-end styling of the car.
Along with new styling came a new model. Continuing the Native American theme of Pontiac, the Chieftain line was introduced to replace the Torpedo. These were built on the GM B-Body platform and featured sportier styling than the more conservative Streamliner. In 1950, the Catalina trim-level was introduced as a sub-series.
In 1952, Pontiac discontinued the Streamliner and replaced it with additional models in the Chieftain line built on the GM A-body platform. This single model line continued until 1954 when the Star Chief was added. The Star Chief was created by adding an 11-inch (280 mm) extension to the A-body platform creating a 124-inch (3,100 mm) wheelbase.
The 1953 models were the first to have one-piece windshields instead of the normal two-piece units. While the 1953 and 1954 models were heavily re-worked versions of the 1949-52 Chieftain models, they were engineered to accommodate the V-8 engine that would appear in the all-new 1955 models.
1955–1960
Completely new bodies and chassis were introduced for 1955. A new 173-horsepower (129 kW) overhead valve V-8 engine was introduced. (see Engines section below). Sales increased. With the introduction of this V-8, the six cylinder engines were discontinued; a six-cylinder engine would not return to the full-size Pontiac line until the GM corporate downsizing of 1977. An overhead cam six cylinder engine was used in the Tempest model line starting in 1966, as well as on the Firebird. It was the first mass produced engine in America utilizing an overhead camshaft configuration.[2]
In 1956 when Semon "Bunkie" Knudsen became general manager of Pontiac, with the aid of his new heads of engineering, E. M. Estes and John DeLorean, he immediately began reworking the brand's image. One of the first steps involved the removal of the famous trademark "silver streaks" from the hood and deck lid of the 1957 models just weeks before the '57s were introduced. Another step was introducing the first Bonneville—a limited-edition Star Chief convertible that showcased Pontiac's first fuel-injected engine. Some 630 Bonnevilles were built for 1957, each with a retail price of nearly $5800. While new car buyers could buy a Cadillac for that price, the Bonneville raised new interest in what Pontiac now called "America's No. 1 Road Car."
The Bonneville, a sub-series of the Star Chief introduced with the 1957 models, then, became its own line. These were built on the 122-inch (3,100 mm) wheelbase of the A-body platform. A 1958 Tri-Power Pontiac Bonneville was the pace car for that year's Indianapolis 500. Also, 1958 was the last year Pontiac Motor Division would bear the "Indian" motif throughout the vehicle.
With the 1959 model year, Pontiac came out with its "V" emblem, with the star design in the middle. The "V" design ran all the way up the hood from between the split grille, and on Starchief Models, had 8 chrome stars from the emblem design bolted to both sides of the vehicle as chrome trim. Knudsen saw to it that the car received a completely reworked chassis, body and interior styling. Quad headlamps, and a longer, lower body were some of the styling changes.
The Chieftain line was renamed Catalina; Star Chief was downgraded to replace the discontinued Super Chief series, and the Bonneville was now the top of the line, coming equipped with a fuel-injection system. The Star Chief's fourdoor "Vista" hardtop was also shared by the Bonneville. This coincided with major body styling changes across all models that introduced increased glass area, twin V-shaped fins and lower hood profiles. Because of these changes, Motor Trend magazine picked the entire Pontiac line as 1959 Car of the Year. The '59s have a five-inch (127 mm) wider track, because Knudsen noticed the new, wider bodies looked awkward on the carried-over 1958 frames. The new "Wide-Track" Pontiacs not only had improved styling, but also handled better—a bonus that tied into Pontiac's resurgence in the marketplace.
The 1960 models saw a complete reskinning, which removed the tailfins and the distinctive split grille (which Ford copied on the final Edsel models for 1960). Ventura was introduced, a more luxurious hardtop coupe and the Vista 4-door hardtop now being built on the shorter 122-inch (3,100 mm) wheelbase platform, with it falling between the Catalina and Star Chief models. The Ventura featured the luxury features of the Bonneville in the shorter, lighter Catalina body.
1961–1970
The 1961 models were similarly reworked. The split grille returned, as well as all-new bodies and a new design of a perimeter-frame chassis for all its full-size models (something which would be adopted for all of GM's intermediate-sized cars in 1964, and all its full-sized cars in 1965). These new chassis allowed for reduced weight and smaller body sizes.
But a complete departure in 1961 was the new Tempest, one of the three BOP (Buick-Olds-Pontiac) "compacts" introduced that year, the others being the Buick Special and Skylark and Oldsmobile F-85 and Cutlass. Toward the end of the 1961 model year, a fancier version of the Tempest, called "LeMans", was introduced. A mispronunciation of the famous 24 Hours of Le Mans auto race in France was emphasized.
All three were unibody cars, dubbed the "Y-body" platform, combining the frame and the body into a single construction, making them comparatively lighter and smaller. All three put into production new technology that GM had been working on for several years prior, but the Tempest was by far the most radical. A seven-foot flexible steel shaft, rotating at the speed of the engine, delivered power from the front-mounted engine to a rear-mounted transaxle through a "torque tube." Because it was curved when installed, the so-called "propeller shaft" was dubbed "ropeshaft." The design's father was none other than DeLorean, and its advantage was twofold: first, the car achieved close to a 50/50 weight balance that drastically improved handling; and second, it enabled four-wheel independent suspension. This was a feature that no other American car could match save the Corvair, as well as eliminating the floor "hump" that usually came with front engined rear drive cars.
Though the Tempest's transaxle was similar to the one in the Corvair, introduced the year before, it shared virtually no common parts. GM had planned to launch a Pontiac version of the Corvair, but "Bunkie" Knudsen—whose niece had been seriously injured in a Corvair crash—successfully argued against the idea. Instead, DeLorean's "ropeshaft" design was greenlighted.
Contemporary rumors of the ropeshaft's demise due to reliability problems are unfounded; the ropeshaft's durability and performance had been proven in tests in full-size Pontiacs and Cadillacs in 1959, and only adapted to a smaller car in 1960. The Tempest won the Motor Trend "Car of the Year" award in 1961—for Pontiac, the second time in three years. DeLorean's vision has been further vindicated by the adoption of similar designs in a slew of modern high-performance cars, including the Porsche 928, the Corvette C5, and the Aston Martin DB9.
Unless customers checked an option, the Tempest's powerplant was a 194.5 ci inline-four-cylinder motor, derived from the right bank of the venerable Pontiac 389 V8, enabling it to be run down the same production line as the 389, saving costs for both the car's customers and Pontiac. Pontiac engineers ran early tests of this motor by literally cutting off the left bank of pistons and adding counterweights to the crankshaft, and were surprised to find it easily maintained the heaviest Pontiacs at over 90 miles per hour (140 km/h). In production, the engine received a crankshaft designed for just four cylinders, but this didn't completely solve its balance issues. The engine gained the nickname "Hay Baler" because of it tendency to kick violently, like the farm machine, when its timing was off.
The aforementioned Buick 215 V8, was ordered by less than two percent of its customers in the two years it was available, 1961 and 1962. Today, the 215 cars are among the most sought-after of all Tempests. In 1963, Pontiac replaced the 215 with a "new" 326, an iron block mill that had the same external dimensions and shared parts with the 389, but an altered, reduced bore. The car's body and suspension was also changed to be lower, longer and wider. The response was that more than half of the 1963 Tempests and LeMans (separate lines for that one year only) were ordered with the V8, a trend that did not go unnoticed by management. The next year, the performance V8 option was badged as the now-famous GTO. The Tempest's popularity helped move Pontiac into third place among American car brands in 1962, a position Pontiac would hold through 1970. The Buick 215 V8 would remain in production for more than thirty five years, being used by Britain's Rover Group after it had bought the rights to it. GM attempted to buy the rights back, however, Rover wished, instead, to sell the engines directly.
In 1961, Knudsen had moved to Chevrolet and Estes had taken over as general manager. Estes continued Knudsen's work of making Pontiac a performance-car brand until 1964, when John DeLorean replaced Estes as general manager, and he too continued in the same direction. Pontiac capitalized on the emerging trend toward sportier bucket-seat coupes in 1962 by introducing the Grand Prix. Although GM officially ended factory support for all racing activities across all of its brands in January 1963, Pontiac continued to cater to performance car enthusiasts by making larger engines with more power available across all model lines. For 1963, the Grand Prix received the same styling changes as other full-sized Pontiacs such as vertical headlights and crisper body lines, but also received its own squared-off roofline with a concave rear window, along with less chrome.
For 1964, the Tempest and LeMans' transaxle design was dropped and the cars were redesigned under GM's new A body platform; frame cars with a conventional front-engine, rear-wheel-drive layout. The most important of these is the GTO, short for "Gran Turismo Omologato," the Italian for "Grand Touring, Homologated" used by Ferrari as a badge to announce a car's official qualification for racing. In spite of a GM unwritten edict against engines larger than 327 ci (the size of the Corvette's) in intermediate cars, DeLorean (with support from Jim Wangers from Pontiac's ad agency), came up with the idea to offer the GTO as a dealer option package that included a 389 ci engine rated at 325 or 348 horsepower (260 kW).
The entire Pontiac lineup was honored as Motor Trend's Car of the Year for 1965, the third time for Pontiac to receive such honors. The February, 1965 issue of Motor Trend was almost entirely devoted to Pontiac's Car of the Year award and included feature stories on the division's marketing, styling, engineering and performance efforts along with road tests of several models.
Due to the popularity of the GTO option, it was split from being an option on the Tempest LeMans series to become the separate GTO series. On the technology front, 1966 saw the introduction of a completely new overhead camshaft 6-cylinder engine in the Tempest, and in an industry first, plastic grilles were used on several models.
The 1967 model year saw the introduction for the Pontiac Firebird pony car, a variant of the Chevrolet Camaro that was the brand's answer to the hot-selling Ford Mustang. Intermediate sized cars (Tempest, LeMans, GTO) were mildly facelifted but the GTO lost its Tri-Power engine option though it did get a larger 400 cubic-inch V8 that replaced the previous 389. Full-sized cars got a major facelift with rounder wasp-wasted bodylines, a name change for the mid-line series from Star Chief to Executive and a one-year-only Grand Prix convertible. The 1968 Bonneville models had copied styling from both the front and rear of the Edsel. The front view of the 1959 Edsel and the rear view of the 1958 Edsel bear a striking resemblance. 1968 introduced the Endura 'rubber' front bumper on the GTO, the precursor to modern cars' integrated bumpers, and the first of a series "Ram Air" engines, which featured the induction of cold air to the carburetor(s) for more power, and took away some of the sting from deleting the famous Tri-Power multiple carburation option from the engine line up. This line culminated in the Ram Air IV and V round port cylinder headed engines. The Ram Air V garnered much auto press publicity, but only a relative few were made available for sale. Full-sized cars and intermediates reverted from vertical to horizontal headlights while the sporty/performance 2+2 was dropped from the lineup.
For 1969, Pontiac moved the Grand Prix from the full-sized lineup into a G-body model of its own based on the A-body intermediate chassis, but with distinctive styling and long hood/short deck proportions to create yet another niche product - the intermediate-sized personal-luxury car that offered the luxury and styling of the higher priced personal cars such as the Buick Riviera and Ford Thunderbird but for a much lower pricetag. The new Grand Prix was such a sales success in 1969 as dealers moved 112,000 units - more than four times the number of Grand Prixs sold in 1968. Full-sized Pontiacs were also substantially restyled but retained the same basic underbody structure and chassis that debuted with the 1965 model - in fact the rooflines for the four-door pillared sedans and Safari wagons were the same as the '65 models, while the two-door semi-fastback design gave way to a squared-off notchback style and four-door hardtop sedans were also more squared off than 1967-68 models. The GTOs and Firebirds received the Ram Air options, the GTO saw the addition of the "Judge" performance/appearance package, and the Firebird also got the "Trans Am" package. Although originally conceived as a 303 cubic inch model to compete directly in the Trans Am racing series, in a cost saving move the Pontiac Trans Am debuted with the standard 400 cubic inch performance engines. This year also saw De Lorean leaving the post of general manager to accept a similar position at GM's Chevrolet division. His replacement was F. James McDonald.
The 1969 Firebirds received a heavy facelift but otherwise continued much the same as the original 1967 model. It was the final year for the overhead cam six-cylinder engine in Firebirds and intermediates, and the Firebird convertible (until 1991). Production of the 1969 Firebirds was extended into the first three months of the 1970 model year (all other 1970 Pontiacs debuted Sept. 18, 1969) due to a decision to delay the introduction of an all-new 1970 Firebird (and Chevrolet Camaro) until after the first of the year - Feb. 26, 1970 to be exact.
1970–1982
Increasing insurance and fuel costs for owners coupled with looming Federal emissions and safety regulations would eventually put an end to the unrestricted, powerful engines of the 1960s. Safety, luxury and economy would become the new watch-words of this decade. Engine performance began declining in 1971 when GM issued a corporate edict mandating that all engines be capable of using lower-octane unleaded gasoline, which led to dramatic drops in compression ratios, along with performance and fuel economy. This, coupled with trying to build cars as plush as GM's more luxurious Buicks and Oldsmobiles, contributed to the start of a slow decline of Pontiac in 1971.[3]
In mid-1971 Pontiac introduced the compact, budget-priced Ventura II (based on the third generation Chevrolet Nova). This same year, Pontiac completely restyled its full-sized cars, moved the Bonneville, and replaced it with a higher luxury model named the Grand Ville, while Safari wagons got a new clamshell tailgate that lowered into the body while the rear window raised into the roof.
1971-1976 model full-size station wagons featured a 'Clamshell' design where the rear power-operated glass slid up into the roof as the tailgate (manually or with power assist), dropped below the load floor. The power tailgate, the first in station wagon history, ultimately supplanted the manual tailgate, which required marked effort to lift from storage. The Clamshell system — heavy and complex — remained un-adopted by any other manufacturer.
The 1972 models saw the first wave of emissions reduction and safety equipment and updates. GTO was a now sub-series of the LeMans series. The Tempest, was dropped, after being renamed 'T-37' and 'GT-37' for 1971. The base 1972 mid-sized Pontiac was now simply called LeMans.
MacDonald left the post of general manager to be replaced by Martin J. Caserio in late 1972. Caserio was the first manager in over a decade to be more focused on marketing and sales than on performance.
For 1973, Pontiac restyled its personal-luxury Grand Prix, mid-sized LeMans and compact Ventura models and introduced the all-new
Grand Am as part of the LeMans line. All other models including the big cars and Firebirds received only minor updates. Again, power dropped across all engines as more emissions requirements came into effect. The 1973 Firebird Trans Am's factory applied hood decal, a John Schinella restylized interpretation of the Native American fire bird, took up most of the available space on the hood. Also in 1973, the new Super Duty 455 engine ("Super Duty" harkening back to Pontiac's Racing Engines) was introduced. Although it was originally supposed to be available in GTOs and Firebirds, only a few SD 455 engines made it into Firebird Trans Ams that year. One so equipped was tested by 'Car and Driver' magazine, who proclaimed it the last of the fast cars. But the pendulum had swung, and the SD 455 only hung on one more year in the Trans Am.
All Federal emissions and safety regulations were required to be in full effect for 1974 causing the demise of two of the three iterations of the big 455 cubic inch engines after this year. The last version of the 455 would hang on for two more years before being discontinued.
For 1975, Pontiac introduced the new sub-compact Astre, a version of the Chevrolet Vega. This was the brand's entry into the fuel economy segment of the market. Astre had been sold exclusively in Canada from 1973. It was offered through the 1977 model year. 1975 would also see the end of Pontiac convertibles for the next decade.
The 1976 models were the last of the traditional American large cars powered by mostly big block V8 engines. After this year, all GM models would go through "downsizing" and shrink in length, width, weight and available engine size. The 1976 Sunbird, based on the Chevrolet Vega and Monza's equivalent, joined the line. It was first offered as a Notchback, with a Hatchback body style added in 1977. The Vega Wagon body style was added in 1978, Sunbird Safari Wagon, replacing the Astre Safari Wagon. The Sunbird was offered in its rear-wheel-drive configuration through the 1980 model year. (Sunbird Safari wagon through 1979.)
For 1977, Pontiac replaced the Ventura with the Phoenix, a version of Chevrolet's fourth generation Nova. Pontiac also introduced its 151 cubic inch "Iron Duke" 4-cylinder overhead valve engine. It was first used in the 1977 Astre, replacing Astre's aluminum-block 140 cubic inch Vega engine. The 'Iron Duke' engine would later go into many GM and non-GM automobiles into the early 1990s. The 151 cubic inch L4 and the 301 cubic inch V-8 were the last two engines designed solely by Pontiac. Subsequent engine design would be accomplished by one central office with all designs being shared by each brand.
The remainder of the 1970s and the early 1980s saw the continued rise of luxury, safety and economy as the key selling points in Pontiac products. Wire-spoked wheel covers returned for the first time since the 1930s. More station wagons than ever were being offered. Padded vinyl roofs were options on almost every model. Rear-wheel drive began its slow demise with the introduction of the first front-wheel drive Pontiac, the 1980 Phoenix (a version of the Chevrolet Citation). The Firebird continued to fly high on the success of the 'Smokey and the Bandit' film, still offering Formula and Trans Am packages, plus a Pontiac first- a turbocharged V-8, for the 1980 and 1981 model years. Overall, Pontiac's performance was a shadow of its former self, but to give credit where due, Pontiac Motor Division did more with less than most other brands were able to in this era.
1982–1988
Introduced in 1982, the wedge shaped Firebird was the first major redesign of the venerable pony car since 1970. Partly due to the hugely successful NBC television series Knight Rider, it was an instant success and provided Pontiac with a foundation on which to build successively more performance oriented models over the next decade. The Trans Am also set a production aerodynamic mark of .32 cd.
The next step in Pontiac's resurgence came in the form of its first convertible in nine years. GM adapted the J-body cars. The all-new for 1982 J2000 (later renamed Sunbird) had a convertible as part of its line.
Next came the 1984 Fiero. This was a major departure from anything Pontiac had produced in the past. A two-seat, mid-engined coupe, the Fiero was targeted straight at the same market that Semon Knudsen had been aiming for in the late 1950s: the young, affluent buyer who wanted sporting performance at a reasonable price. The Fiero was also an instant success and was partially responsible for Pontiac seeing its first increase in sales in four years.
Pontiac also began to focus on technology. In 1984, a Special Touring Edition (STE) was added to the 6000 line as a competitor to European road cars such as the Mercedes 190. The STE sported digital instruments and other electronics as well as a more powerful V-6 and retuned suspension. Later iterations would see some of the first introductions on Pontiacs of anti-lock brakes, steering wheel mounted radio controls and other advanced features.
With the exception of the Firebird and Fiero, beginning in 1988 all Pontiacs switched to front-wheel drive platforms. For the first time since 1970, Pontiac was the number three domestic car maker in America. Pontiac's drive to bring in more youthful buyers was working as the median age of Pontiac owners dropped from 46 in 1981 to 38 in 1988.
1989–1997
With the focus back on performance, Pontiac was once again doing what it did best. Although updating and revamping continued throughout the 1990s, the vast change seen during the 1980s did not. The period between 1989 and 1997 can best be described as one of continuous refinement. Anti-lock brakes, GM's Quad-4 engine, airbags and composite materials all became standard on Pontiacs during this time.
All new models were produced but at more lengthy intervals. The 1990 model year saw the launch of Pontiac's first minivan and light truck, the Trans Sport. The Sunbird was replaced with the (still J-body) Sunfire in 1995.
Most significantly, an all new Firebird bowed in 1993. It was powered by either a 3.4L V-6 with 160 hp (120 kW), or in TransAm guise a roaring 275 hp (205 kW) L-T1, which was a 5.7L (346c.i.) V-8, and could be backed by a T-56 six speed manual (which was the same transmission found in contemporary Corvettes and Vipers). This new Firebird easily outperformed its main rival, the Ford Mustang, but didn't do as well in the marketplace due to the Mustang's superior image and refinement, particularly in the interior.
1997–2004
Beginning in 1996, Pontiac began mining its historic past. This was the last year for the 6th generation Grand Prix. 1997 led the way for an all new Grand Prix, which debuted with the Wide Track chassis making a return spearheaded by the "Wider is Better" advertising campaign. In addition, the GTP trim level was added to the Grand Prix. It featured a supercharged 3.8L V-6 putting out 240 hp (180 kW) and 280 ft·lbf (380 N·m) of torque. It was only available with an automatic with front wheel drive so its sporting appeal was limited, but it made a compelling case against the Accord/Camry.
The 1999 model year saw the replacement of the Trans Sport with the larger Montana minivan. The year 2000 marked the first redesign of the Bonneville, since 1992. Based on the G-Body, the same as the Oldsmobile Aurora and Buick LeSabre, the car was more substantial feeling all around.
In 1998 the Firebird was updated. It featured sleeker styling and improved amenities. The TransAm received the LS-1 motor which produced 305 hp (227 kW). The WS6 option saw this number increase to 320 hp (240 kW) and the addition of Ram Air and stiffer springs. However, despite handily outperforming the redesigned 1999 Mustang, the Firebird was not nearly as large a sales success. In 2002 both the Firebird/Trans Am and Camaro were discontinued as a result of declining sales and a saturated sport market. Some speculate that it was due to the fact that GM was more focused on its more profitable body-on-frame design trucks and SUVs. The coupe version of the Grand Prix was also discontinued.
In 2003, it was announced that the Grand Prix would be in its last year of its generation, with an improved 7th generation on the way for 2004.
In 2004 the re-introduction of the Pontiac GTO (based on the Holden Monaro from Australia) took place, effectively replacing the spot left by the TransAm. The GTO was also initially powered by the LS-1 V8. It had an independent rear suspension and a much improved interior. It was also heavier and looked boring by the standards of its market segment. This, and the fact that it was competing against an all new Mustang, combined to make it a sales flop, despite the addition of the 400 hp (300 kW) LS-2. The GXP trim level was also introduced, replacing the SSEi name on the Bonneville. The Bonneville GXP featured a 4.6 Northstar V8, borrowed from Cadillac, and replaced the Supercharged 3800 Series II. The redesigned Grand Prix made its appearance, and featured a GT and GTP trim level. The GTP's new 3.8L supercharged V-6 now made 260 horsepower (190 kW), up 20 from the previous generation. TAPshift was also introduced as well as a Competition Group package (Comp G).
[edit] 2005–2010
Pontiac went through a complete product revamping through this period. The Grand Am was replaced with the mid-size G6 in 2004. The Bonneville ended production in 2005 after nearly 50 years of production. Although it was not directly replaced, the RWD G8 serves as an initial replacement. The Solstice concept shown in 2003 was approved for production as roadster. Sales started for the 2006 model year following the launch of the hardtop coupe in 2008. The controversial and slow selling Aztek was finally phased out and replaced by the Torrent, which was identical to the Chevrolet Equinox. The Sunfire was discontinued in 2005 along with the Cavalier and its replacement, the G5, didn't appear until the 2007 model year.
The Grand Prix ended production in 2008 and the launch of the Australian-built RWD G8 commenced. The G8 gained positive reception for its high performance and low costs. Many noted the G8 as the poor man's BMW M5, due to similar performance but at a much cheaper price. The Holden Ute was scheduled to be launched as the G8 ST before it was cancelled in January 2009 due to GM's financial situation. It was later announced that the G8 may not see a second generation.
Towards the end of the decade many rumors began spreading that Pontiac would become completely reliant on RWD. Reports ranged from a compact sedan based on the Alpha platform to a new RWD G6 for the 2013 model year. Many reports suggested that the Trans Am/Firebird would return after GM confirmed the rebirth of the Camaro, however, no reports confirmed this.
On December 2, 2008, General Motors announced that it was considering eliminating numerous brands, including Pontiac, in order to appease Congress in hope of receiving a 25 billion dollar loan.[4] On February 17, 2009, GM originally proposed the elimination of its Saturn division, the sale of Saab, and either the sale or elimination of Hummer, depending on whether a buyer could be found quickly. In the original plan GM also clarified that Pontiac would have begun to focus on "niche" models aimed at the "youthful and sporty" segment, but did not provide specifics. Pontiac was to trim its number of models to four,[5] although there was talk of retaining only one model.[6] By April 2009 several automotive websites and business publications were reporting that GM was doing a study suggesting it might eliminate the brand altogether, along with sister truck brand GMC.[7][8][9] On April 23 a report was published[10] stating the company would be dropping the Pontiac brand while preserving the GMC truck line, as well as the Chevrolet, Cadillac, and Buick brands. The decision to eliminate Pontiac was made primarily due to the increasing threat of a bankruptcy filing if the June 1 deadline could not be met.[11] On April 27, 2009, GM officially announced that Pontiac would be dropped and that all of its remaining models would be phased out by the end of 2010.[12][13]
General Motors will cut an additional 7,000 to 8,000 factory jobs in the United States and shed 2,600 dealers by 2010 under a revised business plan developed with the Obama administration. GM Chief Executive Officer Fritz Henderson said the Pontiac brand would be closed by 2010, calling it an “extremely personal decision.” In addition to speeding up decisions on Saturn, Saab and Hummer, GM will be left with four brands – Chevrolet, Buick, GMC and Cadillac.[14]
In early May 2009, Jim Waldron, a Davison, Michigan, Pontiac dealer, announced that he was interested in purchasing the Pontiac brand and logos, and had found financing to purchase them as well as some soon-to-be shuttered GM plants in order to build cars. However, GM had already decided to retire the brand as it has begun to sell off its remaining inventory and said that, unlike Saturn, the brand was not for sale.
The last American Pontiac, a 2010 G6, was built on November 25, 2009, at the Orion Assembly plant. No public farewell took place, although a group of plant employees documented the event. In December 2009, the last Pontiac-branded vehicle to roll off an assembly line was in the Canadian-market Pontiac G3 Wave, manufactured in South Korea by GM Daewoo.
The Pontiac brand was pulled after the 2009 model year in Mexico and the brand was renamed Matiz, selling only one vehicle, the Matiz G2 (Matiz's logo is similar to Pontiac's).
Pontiac became the second brand General Motors has eliminated in six years. Oldsmobile met the same fate in 2004 after being more slowly phased out over four years. Pontiac also became the ninth North American automobile brand since 1987 to be phased out, after Merkur, Passport, Asüna, Geo, Plymouth, American Motors (AMC) (renamed Eagle in 1988, only to be phased out a decade later), and Oldsmobile.
In January 2010, Saab was purchased by the Dutch auto manufacturer Spyker Cars and was renamed "Saab Spyker Cars."[18] 2010 would also see the end of the Saturn and Hummer brands.
Style trademarks and logo
A Native American headdress was used as a logo until 1956. This was updated to the currently used Native American red arrowhead design for 1957. The arrowhead logo is also known as the Dart.
Besides the logo, another identifying feature of Pontiacs were their "Silver Streaks" -- one or more narrow strips of stainless steel which extended from the grille down the center of the hood. Eventually they extended from the rear window to the rear bumper as well, and finally; along the tops of the fins. Although initially a single band, this stylistic trademark doubled to two for 1955 - 1956. The Streaks were discontinued the same year the Indian Head emblems were; 1957.
Other long-familiar styling elements were the split grille design (from 1959 onward), pointed 'arrowhead' nose (in the 1960s and 70s), and "grilled-over" (in the 1960s), or multiple-striped taillights. This later feature originated with the 1963 Grand Prix, and although the '62 Grand Prix also had rear grillework, the taillight lenses were not behind it. Less longstanding but equally memorable is the 'cladding' common on the doors and fenders of Pontiacs produced in the 1980s and 90s. Rather than minimizing the side bumper, Pontiac designers put two troughs going along the length. Reviews were generally negative but bumpers with this appearance were found on nearly all Pontiacs until the arrival of the G6. From 2004 onwards, new Pontiacs had cleaner, more premium styling, but retained the traditional split grille.
[edit] Engines
Main article: Pontiac V8 engine
Pontiac engineer Clayton Leach designed the stamped steel valvetrain rocker arm, a simplified and reliable alternative to a bearing-equipped rocker. This design was subsequently picked up by nearly every OHV engine manufacturer at one point or another.
Pontiac began work on a V-8 configuration in 1946. This was initially intended to be an L-head engine, and 8 experimental units were built and extensively tested by the end of the 1940s. But testing comparisons to the OHV Oldsmobile V-8 revealed the L-head could not compete performance-wise. So, in addition to building a new Pontiac Engineering building in 1949-1951, the decision to re-direct the V-8 to an OHV design delayed its introduction until the 1955 model year.
In mid-1956, Pontiac introduced a higher-powered version of its V-8. Among other things, this version of the engine was equipped with a high performance racing camshaft and dual 4-barrel carburetors. This was the first in a series of NASCAR-ready Super-Tempest and Super-Duty V-8 engines and introduced the long line of multi-carburetor equipped engines that saw Pontiac become a major player during the muscle car and pony car era of the 1960s.
Pontiac's second generation V-8 engines shared numerous similarities, allowing many parts to interchange from its advent in 1959 to its demise in 1979. Sizes ranged from 265 cubic inch to 455 cubic inch. This similarity (except the 301 & 265) makes rebuilding these engines relatively easier. This feature also made it possible for Pontiac to invent the modern muscle car, by the relatively simple process of placing its second largest-displacement engine, the 389 cid, into its mid-size car, the Le Mans, creating the Pontiac GTO.
From their inception in the 1950s until the early 1970s, Pontiac engines were known for their performance. The largest engine was a massive 455 cubic inch V-8 that was available in most of their mid-size, full-size and sports car models. At the height of the horsepower era, Pontiac engines reached a powerful 390 rated horsepower (SAE gross), though other engines achieved considerably higher outputs in actuality. Federal emissions laws eventually brought the horsepower era to a close and resulted in a steady decline for Pontiac's engines. One holdout to this industry-wide slide was the Super Duty 455 engine of 1973-1974. Available only in the Firebird Formula and Trans Am models, this was rated at 310 hp (230 kW) net initially but after having issues passing EPA emissions tests, the camshaft was changed to the old RA III cam and with the change, came a 290 hp (220 kW) net rating. The engine was the pinnacle of Pontiac engine development and was a very strong performer that included a few race-specific features, such as provisions for dry-sump oiling. This engine and its legacy drive the SD Trans Ams and Formulas as the one of the more, if not the most, desirable Pontiacs ever produced.
The only non-traditional Pontiac V-8 engines were the 301 cubic inch and the smaller displacement 265 cubic inch V-8s. Produced from 1977 through 1981, these engines had the distinction of being the last V-8s produced by Pontiac; GM merged its various brand's engines into one collectively shared group in 1980, entitled General Motors Powertrain. Interestingly, the 301 had a 4-inch (100 mm) bore and 3-inch (76 mm) stroke, identical to the vaunted Chevrolet small-block engine and Ford Boss 302 engine.
Pontiac engines were not available in Canada, however, but were replaced with Chevrolet engines of similar size and power, resulting in such interesting and unusual (at least to American car fans) models as the Beaumont SD-396 with a Chevrolet big-block 396 cubic inch V-8.
[edit] Carburetors
PMD originally used Carter 1-barrel carburetors for many years, but by the time of the second generation V-8 engines had switched mostly to 2-barrel offerings. These also were the basis for the Tri-Power setups on the engines.
The Tri-Power setup included one center carburetor with idle control and two end carburetors that did not contribute until the throttle was opened more than half way. This was accomplished two ways, mechanically for the manual transmission models, and via a vacuum-switch on the automatics. This went through various permutations before being banned by GM as a factory installed option in 1967, and totally in 1968.
PMD also had a square-bore 4-barrel at the time, but this was rated at a lower power than the Tri-Power. This carburetor was later replaced by the Quadrajet, a spread bore. 'Spread-bore' refers to the difference in sizes between the primaries and secondaries.
By the end of the muscle car era, the QuadraJet setup had become the nearly ubiquitous choice on PMD engines, due to its excellent economy and power characteristics. While QuadraJets have been occasionally derided as being poor performers, with proper understanding and tuning it can compete at most levels with other designs short of the full race inspired set-ups such as the Holley Double-Pumpers, which incorporated accelerator pumps on the primary and secondary carburetor circuits.
This Q-jet design proved good enough to last 1990 (Oldsmobile V8 applications), with added computer controls in order to meet federal and CARB standards.
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