All Z3 Roadsters have soft tops, the hard tops are removable. The Coupes have a fixed roof. The price your dealer quoted is right on the mark for what I paid in New England. The alignment can be tricky, I opted to have the dealer do it. Check out Roadfly, many there have installed there own. As for cheaper places check out Ebay, but shipping will cost. Good luck, I love mine. Gives me couple of extra months of driving.