hi, i just bought a set of original S4 avus wheels , they came with 235/45 17 tyres , but i always thought there should be 225/45 17 . can anyone confirm what was original size of tyre for those wheels ,and also i have a chance to buy a set of pirelli P6000 tyres , are they any good form my car , 2.8 quattro tip, 2000(W), thanks.