15. Plymouth Superbird Hemi – $1 million
As one of the craziest muscle cars ever produced, the Superbird has one of the most recognizable graphics packages ever presented to the general public. The Superbird attempted to win the famous Aero Wars in the late ’60s to early ’70s NASCAR championship.
To homologate the car for racing, Plymouth built just under 2000 road-going Superbirds and sold them all over America. Most came with 440 V8, but those that came with the 426 Hemi are truly expensive (via Supercars).