Pontiac was never good at letting go. Even as emissions strangled Detroit’s horsepower culture, the division that built the GTO refused to surrender quietly. And in 1975—against logic, policy, and ...

The Pontiac Trans Am 455 Super Duty arrived just as Detroit was being forced to turn down the volume on big cubic inches, which is exactly why it still looms so large in muscle car history. Built in ...

Firebird sales increased in 1974, and the Trans Am more than doubled from the previous year. Pontiac sold over 73,700 units this year, and the base Firebird accounted for over 26,000 cars, remaining ...