3: 1967 Plymouth GTX
Plymouth or Chrysler has never had the most reliable cars on the road, but they resonated with consumers nonetheless. The 1967 Plymouth GTX is a notable exception to this because of the unique styling of the car. It was positioned as a luxury car but still managed to have muscle car attributes. The 426 Hemi was an optional engine and although it performed well, its follow-up and reliability were slim.
If you find any of these Plymouths still on the road they are generally reserved for the junkyard. Road salt did not do these bodies justice and rusting was a major problem. If you could beat the rust you would have a decent-looking muscle car, but that isn’t likely.