Jun
5
The original Pontiac GTO was one of the first muscle cars created by
Jim Wangers planned a way to retain the performance image that the division had cultivated with a new focus on fast cars and street performance. It involved transforming the upcoming redesigned Tempest into a Super Tempest with a larger 389 Pontiac V8 engine from the full-sized Pontiac Catalina and Bonneville in place of the standard 326 Tempest V8. By promoting the larger engine Tempest as a special high-performance model, they could produce muscle cars for sale to appeal to the speed-minded youth market who seemed to gravitate towards drag racing.
The GTO was officially a violation of GM policy limiting the A-body intermediate line to a maximum engine displacement of 5.4 L. Since the GTO was an option package and not standard equipment, it could be considered to fall into a loophole in the guidelines. Pontiac General Manager Elliot Estes approved the new model, although sales manager
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