I'm calling B.S. on this M Class ad, they state, "scale a 70% slope" but instead of climbing it, they hoist a ramp by crane and the M Class ROLLS down it.
I going to say that even though they don't show it, there is no way the M Class can transistion from the ramp to the ground without it's grill eating a ton of pavement. Here's the vid:
http://www.youtube.com/watch?v=WJHAMnWEXj4