14. Plymouth Roadrunner Hemi Convertible
The Roadrunner was always a popular muscle car. Most Plymouth customers looked for standard examples with 383 or 440 V8 engines, closed bodies, and few options. However, some wanted to option their Roadrunners to the max and the 1970 Hemi Convertible is was the perfect example. The factory only made three such cars that year. One came with a manual and two came with an automatic transmission.