I've driven that track quite a few times..... I was suprised that this was the turn he lost it on. There are definitely a couple of other turns that are more technically difficult. As Jody stated, there is no wall on the left....only grass. It's the last turn before a big long straight..... the first thought I had was that he was really trying to carry alot of speed into that turn so he could haul ass down the straight.