I find the Nitto INVO's grip about 80-90% of the PS2's, and requiring a much shorter time to get them in "optimal grip" temperature. The PS2's took about double the time to get them to grip 100%.
Steering response I find the INVO's only about 60-70% of the PS2's. The PS2's steering response is precise and quick where as the INVO's feel sluggish.
Price, the INVO's were $300 flat for my rears (285/30/19) while the PS2's in the same size were $452. Yes, this is PER tire.
2009 E92 M3 | Alpine White | Black Extended | Advan RS | Turner Test Pipes | Dinan Axle-Back | OETuning | Eibach Springs | UUC SSK | VRS Front Lip | VRS Type I Diffuser | Matte Black | RPi Scoops | MS Filter | Yokohama AD08 | F1 Pinnacle
Special Thanks: Gintani | OETuning | eAs