Plymouth Hemi Cuda is already a rare gem with only 666 units produced, but this one also features the ultra-rare gator grain ...

Unusual even for its day, the 1962-1964 Plymouth and Dodge Max Wedge cars featured unique dual exhaust cutouts to open up the exhaust for more power when drag racing.

Plymouth Superbird, owned by Richard Petty for more than 30 years, is being offered through Mecum Auctions on January 18.