I have been using the wheels and tyres on both my 991.1 Carerra S and 991.2 Carrera 4s on track at PCGB trackdays, as the club will attest. I've now sold these cars and will be re apperaing in my new GT4. These wheels are fantastic condition and there is still a lot of life left in the Cup 2s . Please see my ebay listing below, or contact me here.
https://www.ebay.co.uk/itm/165582783512
https://www.ebay.co.uk/itm/165582783512