Originally Posted by Richbot
The E9x is not the first M3 to have brakes that aren't up to hard track duty. I don't know of any generation of M3 that doesn't fade its brakes after 5-6 laps on a track with a driver that is actually using the brakes.
You must be talking pad composition. The stock hardware is used on many many many race cars as well as track cars. There's a lot of debate as to whether aftermarket stainless lines are even better than OEM.
Maybe if the driver is (over)using the brakes this is the case, but is that really the goal? Again, I don't think the E9X M3's are included in this analysis. E30/36/46's...are quite capable...even the non-M's.