The two track sessions ive been on in my S3 told me 2 things... i need to be smoother, My fat car kills the brakes , So i keep wondering, Is it worth trying to shed some weight? I will use the car daily so it either needs to not be mega drastic or be things i could put back easy enough. How lite can an S3 be? What do face lift S3's actualy weigh? not claimed book numbers.... actualy weigh.