19. Pontiac SLP Formula Firehawk
The SLP Firehawks were interesting late muscle cars. The model first appeared in 1995, marking the start of a successful venture between GM and the Street Legal Performance Company of New Jersey. This was an outside firm that produced performance kits for Firebirds. However, their cars weren’t just improved base models and in fact, they were much more.

The SLP Formula Firehawk had a 5.7-liter V8 engine delivering 300 or 315 HP, which was a lofty number for 1995. The six-speed manual version could accelerate from 0 to 60 in 4.9 seconds, making it one of the fastest production cars in America. The package cost $6,500 over the price of the regular Trans Am and included numerous upgrades and a Ram Air hood, but it was well worth it.