Dull on the outside and spartan on the inside, this 1966 Plymouth Belvedere is the perfect sleeper thanks to a Hemi swap.

Like its Dodge Super Bee counterpart, the Plymouth Road Runner saw the debut ... and as the first NASCAR entry to break the 200 mph mark on a superspeedway. Interestingly, none of those cars ...

Seven-time NASCAR Cup Series champion Richard Petty; (inset) Richard Petty's 1970 Plymouth Superbird preserved ... it has run only 28,394 miles. With a Super Commando V8 engine and A727 automatic ...