18. Dodge Challenger R/T Hemi Convertible
Plymouth had the Barracuda, the first pony car they introduced two weeks before the Ford Mustang. But its stablemate, Dodge, didn’t enter the segment until 1970. They presented the Challenger with the full firepower of Mopar engines. Buyers could get a powerful 383 V8, as well as a big 440 or the famous 426 Hemi.
Since the Challenger was a true muscle car, the majority they sold were coupes, but a convertible was also available. In 1970, Dodge produced only nine convertible Challengers with the Hemi. That makes this model one of the rarest as well as the most powerful muscle car convertibles built in those golden years.