15 Muscle Cars That Shouldn’t Have Existed — But Thank God They Did

3. Plymouth Superbird

The Plymouth Superbird’s towering rear wing and aerodynamic nose cone made it one of the most visually outrageous muscle cars ever built. Engineered specifically for NASCAR dominance, the Superbird’s radical design gave it a competitive edge on the track but puzzled everyday buyers, leading to sluggish showroom sales. Today, its rarity and motorsports pedigree have transformed it into one of the most coveted collector cars in existence. Dive into the Superbird’s remarkable story at Road & Track.