A far cry from the legendary Pontiac GTO and Firebird muscle cars from the 1960s and '70s, the most powerful Pontiac ever built was actually their final model – the G8 GXP. Now, technically ...

Pontiac's 400 cubic-inch engine was the workhouse motor during the height of the muscle car era. It was a well-rounded engine that was well-received by many mechanics. While the Firebird came with ...