I'm also interested in replacing the seats in my e30 (cracking leather + worn springs + hard horsehair = very uncomfortable ride). Does anybody know if 2-door seats can be installed into a 4-door car? I would like to upgrade to sport seats, but I don't want to buy them if the won't work.
The springs on my rear bench seem okay, and the leather isn't TOO bad, but I think I'd rather have foam padding than horsehair, and I don't know if it's possible to "convert" a horsehair seat to foam.
Since I'll have to get the seats used and it will be harder to match the current tan color than to just buy a set and change the color, does anybody have any suggestions for switching interior color, for either replacing or recoloring the doorpanels and carpeting? I don't know if there were any colors other than black, burgundy, or tan available (grey would be a nice match for my arctic blue exterior, methinks).