screw what other people are saying. heres the TRUTH! straight from a gearhead. a muscle car is ANY POWER CAR FROM AMERICA in the 1940s to 70s. there are no 80's or 90's muscle cars that are real. it doesnt matter if it is stock or custom. it is a muscle car. there are also muscle cars today. THE CHARGER, THE MUSTANG, CORVETTE, ECT.