The Nurburgring is the holy grail when it comes to closed course circuits.  No other race course has the historic significance or technical difficulty of The Ring.  Add in Helmut Dane, known as the King of the Ring, on a Yamaha R1 and you have the makings of an unbelievable video.  He blows by bikes, cars and buses like they are standing still.   As an added plus, Helmut provides a narrative describing the ride.  This is one of my favorite videos.