Put it on HD, full screen and pump up the volume... [video=youtube;G2y3OFf0ArU]http://www.youtube.com/watch?v=G2y3OFf0ArU&[/video]
It's a concerning drive because there are no guardrails. I don't recommend doing it in a straight automatic as downhill is much worse than uphill. You really do need to compression brake. In fact, they have a couple of checkpoints where they take the temperature of your brakes to ensure they're not overheating.