Not that there's anything wrong with M Coupe's clip (dude, I am _so_ jealous!), but to _really_ appreciate the 'ring, you need a proper high performance or race car. So here are the links to my favorite clips, both of a guy in a RUF turbo Porsche having _way_ too much fun on the 'ring!
Lap 1, all in-car:
http://w1.movies.taner.net/RUF-Nurburgring-1.wmv
Lap 2, with many shots, including from a helicopter. Not to be missed!:
http://w1.movies.taner.net/RUF-Nurburgring-2.wmv
They're both big files, though, the first around 14mb, the second 13mb. _Great_ stuff, though, as you get to see what's practically a GT2 car on street tires tackling the most fiendish loop of pavement man has ever devised!
