The Pontiac GTO is an automobile that was manufactured by American automaker Pontiac from 1963 to 1974 for the 1964 to 1974 model years, and by GM's subsidiary Holden in Australia for the 2004 to 2006 model years.
The first generation of the GTO is credited as popularizing the muscle car market segment in the 1960s.
The Pontiac GTO is considered by some to have started the trend with all four domestic automakers offering a variety of competing models.
For the 1964 and 1965 model years, the GTO was an optional package on the intermediate-sized Pontiac LeMans. The 1964 GTO vehicle identification number (VIN) started with 82, while the 1965 GTO VIN started with 237. The GTO became a separate model from 1966 to 1971 (VIN 242...). It became an optional package again for the 1972 and 1973 intermediate LeMans. For 1974, the GTO was an optional trim package on the compact-sized Ventura.
The GTO was selected as the Motor Trend Car of the Year in 1968.
The GTO model was revived from 2004 to 2006 model years as a captive import for Pontiac, a left-hand drive version of the Holden Monaro, itself a coupé variant of the Holden Commodore.
Origins
In early 1963, General Motors' management banned divisions from involvement in auto racing. This followed the 1957 voluntary ban on automobile racing that was instituted by the Automobile Manufacturers Association.
By the early 1960s, Pontiac's advertising and marketing approach was heavily based on performance. With GM's ban on factory-sponsored racing, Pontiac's managers began to emphasize street performance.
In his autobiography Glory Days, Pontiac chief marketing manager Jim Wangers, who worked for the division's contract advertising and public relations agency, states that John DeLorean, Bill Collins, and Russ Gee were responsible for the GTO's creation. It involved transforming the upcoming second-generation Pontiac Tempest (which reverted to a conventional front-engine with front transmission configuration) into a sporty car, with a larger 389 cu in (6.4 L) Pontiac V8 engine from the full-sized Pontiac Catalina and Bonneville in place of the standard 326 cu in (5.3 L) V8. By promoting the big-engine option as a special high-performance model, they could appeal to the youth market (which had also been recognized by Ford Motor Company's Lee Iacocca, who was at that time preparing the Ford Mustang variant of the second generation Ford Falcon compact).
The GTO disregarded GM's policy limiting the A-body intermediate line to a maximum engine displacement of 330 cu in (5.4 L). The development team discovered a loophole in the policy which does not restrict large engines to be offered as an option.
Pontiac general manager Elliot "Pete" Estes approved the new model with sales manager Frank Bridge limiting initial production to 5,000 cars.
The name, which was DeLorean's idea, was inspired by the Ferrari 250 GTO, the successful race car. It is an Italian abbreviation for Gran Turismo Omologato ("grand tourer homologated"), which means officially certified for racing in the grand tourer class.
The Pontiac GTO was never certified as a Grand Tourer race car. Internally, it was initially called the "Grand Tempest Option"[citation needed], one of many automobiles in the Pontiac line up with a 'Grand' in it.
1967
1967 GTO hardtop
The GTO underwent a few styling changes in 1967. The louver-covered taillights were replaced with eight tail lights, four on each side. Rally II wheels with colored lug nuts were also available in 1967. The GTO emblems located on the rear part of the fenders were moved to the chrome rocker panels. The grille was changed from a purely split grille to one that shared some chrome.
The 1967 GTO was available in three body styles:
Hardtop – 65,176 produced
Convertible – 9,517 produced
Sports coupe – 7,029 produced
The GTO also saw several mechanical changes in 1967. The Tri-Power carburetion system was replaced with a single 4-barrel Rochester Quadrajet carburetor. The 389 cu in (6.4 L) engine received a larger cylinder bore 4.12 in (104.6 mm) for a total displacement of 400 cu in (6.6 L) V8, which was available in three models: economy, standard, and high output. The economy engine used a two-barrel carburetor rather than the Rochester Quadrajet and was rated at 265 hp (198 kW) at 4,400 rpm and 397 lb⋅ft (538 N⋅m) at 3,400 rpm. The standard engine was rated at 335 hp (250 kW) at 5,000 rpm; and the highest torque of the three engines at 441 lb⋅ft (598 N⋅m) at 3,400 rpm. The high output engine produced the most power for that year at 360 hp (365 PS; 268 kW) at 5,100 rpm and a maximum torque of 438 lb⋅ft (594 N⋅m; 61 kg⋅m) at 3,600 rpm.
Emission controls were fitted in GTOs sold in California.
The 1967 model year required new safety equipment. A new energy-absorbing steering column was accompanied by an energy-absorbing steering wheel, padded instrument panel, non-protruding control knobs, and four-way emergency flashers. A shoulder belt option was also featured, and the brake master cylinder was now a dual reservoir unit with a backup hydraulic circuit.
The two-speed automatic transmission was also replaced with a three-speed Turbo-Hydramatic TH-400, which was equipped with a Hurst Performance dual-gate shifter, called a "his/hers" shifter, that permitted either automatic shifting in "drive" or manual selection through the gears. Front disc brakes were also an option in 1967.
The GTO sales for 1967 totaled 81,722 units.
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