Originally Posted by Hedoniste
1M has PS2 and M135 has PSS...
My 2011 M3 came with PS2 and now it has PSS. Believe me, The gap between those tires is really amazing. BTW the M135 is quick despit it's an ugly car.
+1 I notice a much softer sidewall in the PSS allowing more give/ earlier bend for an even earlier exit.