Watch what happens when the driver of a Citroën DS3 R, enjoying a lap of the famed Nurburgring Nordschleife, is overtaken by a Porsche GT2 on one of the faster sections of the track. With his dashcam running the Citroën driver keeps pace just long enough to film the massive moment of impact as the Porsche driver leaves the track and makes contact with an unforgiving Armco.
Ouch!
The overtake happens at the 1:52 mark in the video.