A couple other MB lists are talking about a review in a UK magzine about the new MB E-class. It comes with electronic brakes and here is the relavent part:

Then there's the electronic brakes. They will stop the E amazingly quickly and safely, with computers working out the optimum way to bring the car to a halt depending on how the driver has hit the pedal, road conditions and speed. But while they are undoubtedly powerful and very clever, too, the boffins haven't quite got the response right yet. The computer control can't seem to work out how much braking pressure to deliver, and a quick
dab of the pedal to wipe off speed before a corner will often result in more deceleration than you may have intended.