I have determined the 71 is a Gran Coupe. I know this is because the ash tray on the rear left panel is there & you can barely see the wood grain strip on the rear panel, if you look close. Headliner might be in it as well, you can see the thin material hanging down in strips. Also, there is a stainless trim on the top of the quarter by the 1/4 glass. I know rear ash tray were Gran Coupe only. SE Challengers had them in the rear panels as well. Too bad on this Gran Coupe I hope someone rescues the headliner if it is salvageable & other Gran Coupe related items.