I'm impressed. Earlier today, I was rear ended by a Mazada Miata. They thought I would proceed through the yellow light, apparently she did not see the landscape truck making a left-hand turn which caused me to have to stop (otherwise, I would have flew into him!). Anyway, I made an unexpected stop. Following too closely, she jammed the nose of her car into the back end of mine. My car's rear crumple zones were spent! I was okay- she was not. She needed an ambulance. To get to the point, I was highly impressed of the results. I had little to no whiplash. It is amazing how much the crumplezones absorb of the forces. I ended up driving the car home. Much to my shigrin, the electronic trunk closer still worked and even sealed itself! Even when I shut the trunk by hand the hydorpneumatic action still happened! The trunk still sealed it's self. Although it seems like a petit subject, it just reinvests my affection for Mercedes. Thank you Bela for inventing the crumple zones! I just thought I'd share.