Quote Originally Posted by brettbimmer View Post
Automatic transmissioned vehicles are always harder on brakes than manual transmissioned vehicles too. Instead of some engine braking when you lift off the throttle in a manual, the auto trans is always pushing you forward, thus working the brakes harder when you need to slow down and subsequently wearing them out more quickly.
Both my e46s are autos and I seem to get above average brake life, even with DD and autox/track.