I have the same frustration. When I have business associates, it's embarrassing to stop. I had an e39 M5, 2 e60 M5's, new X5M and no issues. My GT2 and F430 Scuderia has never had an issue like this. The dealer has my car for the 2nd time trying to fix it. The car is incredible, but un-drivable and embarrassing if they can't fix the brakes for me.