Today I changed to winter tires on the M3 and on the F11.
I have standard sizes (ZCP) on the M3. Changed this year in April from PS2 to PSS. I drove 8000 km and have 7mm on the front tires and 6mm on the rears. Ok if you ask me, I am a spirited driver...
For the F11 (535i) the situation was not that perfect:
As for the M3 I got new tires in April also. Also PSS, 255/35/20 front and 285/30/20 rear. My wife drives this car normally and she drove 11000 km this year. The buddy from the garage told me I will need new tires on the F11 next year! "Are you serious?!?!?" was my first reply. So it seems that the PS2 have a better tire wear then the PSS. On my old E91 (330i) we drove the PS2 22000 km and still have 5 mm left...
The wear was perfect (3mm on the inside because of the camber, 4mm outside), so no problem with pressure etc. I do not know what I should think about that fact...any ideas?