13. 1973 Pontiac Firebird Trans Am SD-455
The 1973 Pontiac Firebird Trans Am SD-455 stands out for its potent Super Duty engine and limited production. As one of the last true high-performance muscle cars of its era, its rarity and brute force attract dedicated collectors.
Recent sales have seen well-documented SD-455s approach $120,000, underscoring the growing appreciation for this unique and powerful Pontiac.