I used to have a picture on my computer of a silver GP coupe, debadged, moldings removed, and door handles shaved. It look beautiful, cept it had snowflakes... regardless you don't have to go that extreme, not to mention shaved handles look weird on 4-doors =P
Edit: Found it.
Now shave the ribs and throw the damn door handles back on and that's how a GP SHOULD have looked. Obviously with correct options considering not all GP's were Daytonas, and 18" wheels should have at least been an option.