Given that most of the braking "work" is done by the fronts, and the heat sink needs are therefore less for the rear rotors, most manufacturers will go with the solid (as in non vented) rotors because it is cheaper.


98 Silver Frost SVT 97 BMW 540I Sport, six speed "Blue is for sky, black is for soil, and white is for simplicity, purity and hope for the future" "A coveted car should never stunt your life, but should make it more rich and interesting."