"A selection of factory footage that Jim was able to dig up that shows the testing of the toughest Benz I've ever seen. (7.7MB)"
http://www.nextestdrive.net/internalimages/videofiles/guard_S500.mov

yes, VERY tough, and the windows don't roll down, the regultors can't handle the extra weight, also the car is freakin heavy compred to stock