So I had to leave my black GTI which has 18s, in with the dealer for 3 days. They gave me their black demo GTI on 17s. The demo car was definately softer over the bumps than my car, but they looked a lot smaller on the mk 6 than they did on my old mk 5 which had 17s as well....was glad to get my own car back...18s def improve the look on a black car imo