7: ’70s Pontiac Firebird
Pontiac also had a tough time during the 1970s with the fuel crisis going on. The Firebird was always the third wheel to the Mustang and the Camaro, which made the Firebird a more distinct offering. Its styling was always different but the ’70s brought the success of the Smokey and the Bandit edition. The Firebird was hampered by the same things as the Camaro. These smog regulations made it extremely difficult for automakers to create high-performance cars.

The earlier renditions of the second generation F-Body have become highly sought after on the auction block. But later models from the ’70s are generally voidable due to reliability issues and a lack of horsepower. There is no denying that the Firebird was one of the most iconic muscle cars of this generation. But there is a lot that GM could have done better to make the car a more powerful challenger.