laguna seca (with that huar s-bend ) is also a good one .
monaco ,simply for that tunell
anglessey (the one in the f40/f50 vid) , jus looks like a nice drive
spa is another good one
and finally mondello , with dunlop corner . the way you cant actually see it as u aproach it , hard on the brakes , look for the apex , bit of power and see how it treats you
Some great roads up my way and across to kilbeggan I stick to the car though. I tried it on the motorbike few weeks ago still not the better of it. If its closed circuit has to be the Isle of Man both the TT and the rally Manx circuit is unreal went as a passenger in a civic down the mountain circuit where they do the rally driving and its the most scariest thing I ever did.