Video of Xdrive in action
Does anyone have a video camera that will do super slow motion? Attach it to the back bumper under the car, with all four tires in the frame. Do some takeoffs on a slippery surface, and lets see how the system responds.
A thin layer of sand on concrete would be good. Yes, the power goes front to back, but since the axles are not solid, the differential allows the wheels to act on their own.
In loose dirt in my xi, I can feel the power switch around to all four corners as needed.