13. Chevrolet Camaro ZL1 – $1 million
The COPO Camaro ZL1 was a kind of secret Chevrolet drag racing special designed to fly under the radar and corporate ban on racing. It was sold only as special order throughout performance dealerships at a hefty price tag. But the car was unbeatable on the track and famous for its all-aluminum ZL1 427 V8 engine (via Supercars).
Chevrolet only built 69 of those cars, and if you want one to add to your collection, be prepared for a $1 million dollar price tag.