Yeah, the rear wheel arches come out quite a bit on the forfour and a wider stanced wheel would look better from certain angles
But don't really care for that 1 cm difference at the back and there are benefits to wheels that don't stick out that much (less drag, less stress on the ball joints etc)
Having experienced the after market wheel route (primarily as a winter set/pot hole protection), Im still looking for another 16" wheel set with less offset and lower weight, preferably TD pro races .