have you thought about OZ wheels? They are really light and pretty strong from what I hear, not as strong as the 15 inchers that used to come with mercedes, but then what is? Normally they are really expensive, but they seem to randomnly purge their supplies of last years "out of fashion" rims. Check them out.... http://www.oz-boutique.com/OZ_enterFrame.html btw... you are looking for the fitment guide, that will show you what tires will fit....