my mk4.5 handles very well on a good road surface, but crashes about a fair bit when the road is a bit crap, but it does run on 195/45/16's
my mk6.5 handles much better and a lot smoother across every road surface and runs 195/50/15's
but the mk7 is running on the same size and the handling is even better than the difference between the other 2 in terms of just how planted the car feels in any road conditions or surfaces, wet or dry
plus the gearing means that it's much quicker then either of mine in real terms
it's the perfect car, i can only imagine what it's like with twice the power