With my R8 V10 Plus (4S, i.e. second generation) new tyres are due after approx. 11500 km. No problem, was to be expected. Originally the 20 customs Pirelli PZero R01 were on it. I was relatively satisfied with the tire and wanted to switch now also to the PZero R01, because the optional Cup 2 R01 for predominantly road operation are too bad for me. The R01 designation usually says that the tire during the entire lifespan in the mixture and in the profile pattern is identical i But now comes the hammer: Since the MJ2017, Audi has apparently been delivering an improved version of the PZero on the new R8, namely the PZ4. You can recognize these tyres at the additional PZ4 lettering right of the production date and… on a different tread pattern. So far, so good. Unfortunately, Audi has remained at the R01 designation even though this tyre has a different rubber compound and an other The problem is that when the old tyre and the new tyre are “mixed” it can be bad in the eye. The new PZ4 is basically the same PZero, which Porsche now uses with the 991.2 Turbo S (Facelift) and with the N1 identification. This tyre has a fantastic dryness, almost semi-slick similar. In wet weather it is a bit more critical. Why Audi organizes such a mess is a creepy thing for me. . Because actually the new PZ4 would have to be marked with R02. Does anyone have any details or additional information on this? Thank you.