That doesn't look like a very safe place to be driving that fast, but in that guy's defense, that was a nasty, nasty tightening-radius corner. With a bit more skill, he may have been able to take that corner at his speed (better line, don't just keep steering the wheel more and hitting the brakes when you're understeering, etc.).
Two things I learned long ago about driving aggressively:
1: Pretend your lane is your boundary. It will force you to drive a bit slower, and it can still be tons of fun keeping the car between the lines of your single lane. Also, you're legally obligated to drive in your lane...
2: Never, never drive aggressively with other people. It will just make you want to go faster and do things you wouldn't normally do to keep up or pull out more of a lead.
If I remember correctly, this guy was barely injured. That says a LOT about how safe our cars are
Also, watching airbags work properly like that is awesome. That curtain bag blew as soon as the right two wheel left the ground. Cool!