First off, I saw the pic on the M3 board, looks great. I love estoril blue! I would definitly go with the Pilot Sport over the Rosso. I drove them back to back and there was no comparison. The Pirelli was much harsher riding and way noisier too. It is also not going to be as good in the rain, and my autocross times were slower in it than the Pilot Sport, so guess I'm way biased :)