VDrift now has another track for the next version, which Joe imported from a Racer track. This track is
Laguna Seca, which is a great track for the game, because not only is it a pretty fast grip-driving track, but it's also got lots of tight corners which make great opportunities for practicing drifts.
Joe has also written a Racer track conversion How-to which I'll try to post up somewhere soon.
edit: I forgot to mention, this is in the latest SVN. Also, Joe has just added another track called Weekend Drive, by the same author as Ruudskogen. It's a pretty fast track with some nice big hills and sweeping curves.