be careful of the offsets too. they are either high offset (good) or low offset (bad). if you get say et 57 and use a 20mm spacer that brings the offset to et37 which is about spot on. if you go for turbo or wide body wheels then the offset will be around et25. with a 20mm adapter you end up with an offset of et5, and a set of wheels sticking way out of the arches