11. Turbo Corvette C3
The late ’70s were sad times for the American performance car. In fact, all the cars lost their power and became increasingly boring. And the Corvette wasn’t an exception. So, to gain some power back, the Corvette engineers designed the C3 Turbo Corvette as a factory prototype.
The car used an L82 350 V8 engine with a turbocharger and Cadillac’s fuel injection system. Allegedly, the 1979 Turbo Corvette prototype could deliver up to 300 HP, which was insane by the standards of the day. However, you needed some racing 103-octane fuel to produce such power.