I think on the Mustangs up to the mid-late 80's there should be since there were coupe Mustangs and there were fastback/hatchback Mustangs. In the 90's weren't they all just the fastback/hatchbacks.

Coupe: http://www.imcdb.org/vehicle_27164-Ford-Mustang-1987.html
Hatchback: http://www.imcdb.org/vehicle_21157-Ford-Mustang-1987.html