For my 1964 Galaxie, I used red '64 Mustang interior paint, L-6022 I think from Scott Drake for the metal parts. This is different from the Rangoon Red exterior color. For the vinyl parts, I used SEM 15363, Portola Red vinyl dye. The corresponding Mustang vinyl paint was too orange and very thin. Would have taken way to much to cover. I also went to an auto paint store and picked up some flexible vinyl primer in a can, too, as I was changing from black to red. BTW, I just did the dash pad and one arm rest, not the vinyl seats.