This guy is running them on his Mk.VII R:
http://www.golfmk7.com/forums/showthread.php?t=8900It's a friend of mine and I've talked to him several times about the
PS Cups and the Cup 2s. I'd say, if tracking on dry circuits is your
major goal, get the cheaper 1st gen PS Cups and call it a day.
ps:
235/40 R18 seems to be the best performing size, but 235/45 R17 is
quite close while tyres are cheaper, so 17" makes sense if the wheels
clear your brakes. Usually 19" doesn't make sense on track at all, as
in the long run it's way cheaper purchasing a separate set of wheels.