I took my RX8 Mazda to several tracks until I got my wifes X1, since X1 s28i is faster, and you can feel torque out of corner.
I noticed that the rear brakes on both cars wear out faster since the DSC is turning on occasionally.
I'd not run either car without since DSC doesn';t come on if you ran the corner right.
Wildly hanging out rear end is not fastest way around.
I've heard some grinding growl of X1 brakes from time to time, mentioned it, and BMW on warranty shaved some pad off.
I didn't need that much help, but I don't like the instant grab of brakes anyway.
I'm going to put Posiquiet Centric or other long wearing Ceramic pad on next time.
The metalic brake pads are really hard on rotors and wear them also.
I don't need that much brake since even HPDE isn't race only me against my car.
I just wanna know it's limit.