Reportedly all-original aside from the replacement 440 V8 block, this 1970 Plymouth Superbird looks like it spent a lot of ...

Plymouth sold only 658 Road Runner convertibles in 1970. This drop-top is one of only 20 equipped with the 440 Six-Barrel and ...

Top speed was key here, and several iconic muscle cars, such as the Plymouth covered here ... with the latter offering up 380 hp. These could be mated to either a four-speed manual gearbox ...