In the world of muscle cars, the 1968 Ford Mustang GT500KR roars to life with its 428 “Cobra Jet” engine, which, let’s be honest, is about as “under-rated” as a rockstar at karaoke night. Churning out a hulking 440 ft-lbs of torque, this beast could probably tow a small planet if it wanted. After its Le Mans victories, the GT500KR strutted its stuff with die-cast aluminum valve covers, proudly shouting “Cobra Lemans” like a tattoo of triumph. Alas, its name was retired before 1969, much like disco should’ve been.