Legendary American Muscle Cars

6. 1970 Plymouth Superbird 426 Hemi

The 1970 Plymouth Superbird 426 Hemi remains one of the rarest muscle cars due to the fact that it was only in production for one year, and only one hundred and twenty-five Superbirds were given Plymouth’s 436 Hemi engine. This massive engine cranks out a whopping 425 horsepower, enabling the Superbird to go from zero to sixty in just 5.5 seconds. The 1970 Superbird was a popular choice of NASCAR drivers due to the sheer power the Hemi engine produces.