Oner definate item are the opera lites in the rear. I'm pretty sure the sedan only had a dome light. I'd have to check on the other things, I don't know how much of the interior is the same. The shades and robe rail, foot rest ect. I think they all had the crank up front windsheild and adjustable front seat. The one to talk to on that would be Ray Altier, he is the Olds club adviser for 31's. Rich