i never heard of a quilt car. up here in the great white north , when there is no frame or floor left we find a car with the same wheel base or about and cut it from the floors down and but the body/skin(pelt) onto it and the rest is welding it back up. Camaro's / firebird's fit nice under mid 30's to 40's bodies well. i can see a more door a-body Valiant/ scamp etc. sliced and it would fit nice under one of those cuda bodies as a good starting base for it come back to the streets or track in this case.