I understand that as the tyre gets thinner so the ride comfort suffers, and I'm not worried about what the others are saying, just playing along with everyone else.....It's all a personal choice at the end of the day. Also I think I will end up getting 16's when I can actually afford the ones I want, but I'll keep the 17's as I haven't seen a Mk3 with them on, Neither had HAMMER_VR6 who I got them off. But regards the acceleration bit I'm getting confused, as the overall radius will be the same. Also surely the 17's will offer better handling as there is less tyre profile, so less flex!!?? L