I was wondering if anyone could tell me whether a set of 18" Interlagos ( I think that's what they're called) alloys would fit on my mk5 golf? It is a GT TDI 170 with the standard 17's on at the moment. The interlagos wheels are 5x112 so that part if fine but I'm wondering about tyre size and offset? I'd rather not have to make any modifications to the arches. Cheers