16. 1970 AMC AMX 390
The 1970 AMC AMX 390 holds a special place as an underdog in the muscle car world.
Its short wheelbase and robust 390 V8 gave it unique handling and spirited performance.
Low-mileage, original AMX 390s have seen values rise to $65,000-$90,000, as collectors increasingly recognize their distinctive engineering and rarity in today’s market.