The Definition of "MuscleCar"

For Dodge and Plymouth Muscle cars would have been Part of the Scat Pack and rapid transit system from the late 60's and early 70's.As far as A bodies go that would have been the Dart GTS 340,383,440 ,Demon340,Swinger340,Cuda Formula S Duster 340.They were factory muscle cars marketed towards the muscle car /performance market.