$70,250 would be my build, way too high for not being a true M Roadster
switching to the soft top this thing should have been in the mid $60K range the way I built it with this engine.
AWD M340i pretty loaded is around $65K, seems like years ago the soft top Z3/Z4 were about the same price as a loaded 3 series top line (non M). Maybe because of limited sales expectations they had to inflate the prices?