Ouch. That hurts to watch. The wheel and curtain airbags did a great job keeping the upper torso and head in place despite the twisting rebound of the car. I've seen video of other vehicles where the driver slides to the left and the head goes between the wheel and curtain airbag.
MY2013 328i, N26 / 300 / 4CG / KCDF / 2DW / 205 / ZDH / 302 / 3DZ / 403 / 494