The brakes give plenty of feedback and have the typical grabby feel to them that one becomes accustomed to with German cars. I never felt any fade on the track or during the high paced driving to and from BeaveRun, and these brakes took non-stop(no pun intended) abuse out on the track. Brake dust has either been reduced, or the new 18" wheels are better at blocking it from landing on the outside of the rims. Even after two hours on the track, the front rims still resembled the same color they started the day as.
The DSC/DTC has been changed a little, but I couldn't tell the difference from the e46 on the street. It still tends to activate a little soon when accelerating and turning from a stop, causing you to lose power as you try and pull out into an intersection. The DSC activation doesn't happen at all intersections, but it is very easy to call it into action if you're trying to speedily accelerate into traffic. However, by pushing in the DSC button once and releasing, we get a toned down version of DSC which allows for the car to slide a little more and also allows the wheels to spin a few seconds before the electronics take over. I'd have no issue with driving around town in this muted mode.
On the track, it was full DSC all the time, and it did a great job of keeping the rear end in track, while minimizing the amount of speed loss. However, it did increase the amount of understeer, which is no surprise. Given the car's native tendency to understeer, the DSC only compounded this, pushing the car to the outside of a turn. Safer on the streets? Yes. Overly protective on the track? Yes...but then again, these weren't our personal cars we were driving to the limits...
2006 BMW 3-Series, First Drive, Part 3