I'd have to see a shot of the road when hes doing that, from the minor peaks of the road you get, it didnt appear to be a closed course, and it didnt look like he was going as fast as the speedo said. I think if he had a split dash cam/speedo cam it would have been more believable. Personally I think it was pretty stupid of him to take a passenger car without structural reinforments to that kind of speed. If hed lost a tire he would have been dead.