i'm going to use the center buckets [leather] from my old 95 caravan in my humpback. they are only 20 1/2" wide each, and i have them sitting in there now. seems to be enough room, but they need some kind of tracks mounted. i'm not sure if i'll take off the headrests. i remember looking at a high end neon at carlisle one time, and those seats seemed to look like they would fit. there is not much room in the 33-34 bodies, and i think the 35-39 would be very similar. when i had my 38 plymouth coupe, i used a cadillac bench, but i had to cut out over 12" to get it to fit.