Rick is right they hit about 190-200 at several points around the course.
In the days before my Little Monsters came along, I used to go more or less every year. Looking at going back in 2011.
Have a look at this full lap video by the late David Jefferies, along with commentary by him. Absolutely mind blowing.
http://www.dailymotion.com/video/x1b...ll-lap_extreme
