Years ago I was waiting to turn right, foot on brake (brake lights on ), indicator flashing. I looked in the rear view and watched this motor bike set off from the lights about 50 yards behind me. He was hunched over the tank in a galloping position and in a matter of seconds he'd hit the back of my astra estate and landed on the roof, slid down over the bonnet and landed in a heap at the front of the car, completely unhurt apart from grazes and bruises. Punctured his front tyre and cracked my rear bumper.
Didn't have the gymnastic abilities of the rider in the video