hello mate
i did a remap on a guys mk4 1.8t not long ago,he had 19s on it,dont no his tyre size.he also had coilovers on the car,and it amazed me with such a good ride.and the coilovers were only cheapo 1s jamex i think.
depends what your after really.
lots say 18s as 19s kill the ride,but they do look sweet in my eyes.