That's why it's important to get as much heat dissipation as possible. Take a look at a wheel well camera on a NASCAR racer sometime. As soon as the driver hits the brake, the rotor turns red and starts throwing sparks. Of course, that's at 200 MPH, but even on the street, the heat has to be blown away as quickly and efficiently as it can be.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!