Read your post about the Ronals, so out of curiousity I ventured out in my gargage and checked both sets of stock rims that came off my 2 convertibles. The center caps say BBS on them but so do the rims...both sets. I couldn't find any indication that they were Ronals. All the rims have BBS stamped into the metal. Here's the question... Did BMW use Ronal wheels on the "is" models and BBS on the covertibles?