The wheel is similar to the ones on the 300 SRT-8, and there has been much discussion about this. The 300s have a brake dust issue similar to the Crossfire, whereas the Charger SRT-8 does not. The "Official" statement from the SRT engineers was that the wheel was designed to channel the hot air from around the brakes, thus bringing the brake dust with it. My humble opinion is that the wheel does in fact pull the hot air out of the inner wheel cooling the brakes, and depositing the brake dust on the wheels.