They sure look like bullet holes to me...view the Loud Labs Video between 2:55 and 3:14. Look to the rear of the drivers side door onto the quarter panel, you will see 3 angled, inwardly projected grouped holes that have no business being there, either from Mecedes or the accident. Go large screen on the video and you can view it frame by frame.
Just past the 3 min. mark there are some frames between the fireman's legs that more clearly show the holes, and the fact that they are indented inward and show velocity impact tears in the metal.