1969 Corvette ZL1 – $3.14 Million
The 1969 Corvette ZL1 is an experimental legend. Chevrolet produced only two examples, both equipped with an all-aluminum 427 V8 engine that generated over 500 horsepower. The ZL1 was never officially advertised, and its existence was known only to insiders. These vehicles remain some of the most enigmatic Corvettes ever built.