I was finally able to test Trofeo R at racetrack. Today I lapped around 45 laps and yes, Trofeo R works very well! Tire is sticky and grip excellent. I tried to keep around 2,5 bar hot pressure around the car and after adjustments my M3 started to work with that set-up. I'm not sure if car could have stand even lower pressures but sidewall seemed to show some small bending and I didn't want to go further. Front camber was -3,0 and tyre seems to work well with that.
After session I inspected front tyres. You could find only very moderate wearing even after nearly 50 high speed laps. Trofeo R seems to last significantly longer than previous semislics (Yokohama, Kumho) I have used. A very good feature.
Let's see what happens after more laps but right now definitely +++ for Trofeo R!
E92 M3: M-DCT, full black leather, PDC front & rear, M-Drive, Double Spoke 220 M, EDC, light & mirror package, electric fully-adjustable seats, iPod, Individual audio, Professional navigation, RS-19 pads, 18" OEM track wheels, semi-slicks, Akrapovic Full EVO titanium, KW Clubsport, Challenge Carbon Race trunk, Brembo GT brakes 365/345 mm, RPK CF rear wing