Update on my R8: Dealer who keeps my summer wheels in storage just told me that I need a tire replacement. Both, front and rear tires, are at the (legal) limit (profile), so I am going to get new tires. Well, they lasted 11500 km (the last 2000 km were done on winter tires).
I thought long about the replacement, actually wanted to get the OEM certified Michelin Cup 2 R01 instead of the current PZero but decided against it. We have some nice and warm days here in Bavaria but often, it is under 20°C and it also rains from time to time. I wouldn't really benefit from the Cup 2 since they only make sense if I would visit the track often. For pass roads and some fun around curvy country roads, the road tires are the better choice (leaves, dust, wet spots, etc.). Also, the Michelin Cup 2 probably last only 6000-7000 km the way I drive, so... 
So PZero R01 it is...again. Can't say anything bad about these tires though. In the wet, they were pretty impressive and they were also pretty good on dry pavement as well. Only started smearing a little bit at very high temperatures (exceeding 60°C), so no real problem here.
All four tires are 1200 EUR, not cheap but this includes a damage insurance (if the tires get damaged, no matter if punctured or damaged on a boardwalk or whatever, they will be replaced free of cost).
With that occasion, I will get my 20" summer wheels rims painted in the OEM black (anthrazit black, OEM color for the optional black rims). I liked the titanium painted rims but black just suits the car better, especially because then, you can actually see the brake calipers through the black spokes. It just looks better on the R8 in my opinion but to each his own I guess.
I also get an oil and oil filter change (basically the 15000 km "service") and there is a small issue when I upshift in higher gears, it sometimes feels at higher rev figures as if the "clutch" is slipping. They can check this electronically, so no worries here. Maybe I am just imagining things but better to be safe than sorry.
Can't wait to be on summer tires again, the winter tires were OK when we had cold temperatures but at 15°C or so, they are not really fun.
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RC (Germany) - Rennteam Editor Porsche 991 Carrera 4 GTS Cabriolet (2015), Porsche Cayenne S Diesel (2017), Audi R8 V10 Plus (2016), Mini JCW (2015)
Usually, according to my mechanic, they last at least 15-17k km, sometimes even over 20k km. 
A problem was also that I experimented with tire pressures and usually used too high pressures, which caused an uneven wear. This is a problem, especially for AWD cars.
) shouldn't be mixed on a high performance car. So why do both PZero (PZ4 and previous generation) have the same R01 classification? 
