*shrug* I dunno. It just doesn't seem like it has any defining characteristics. Seattle has the jumps, Cote de Azur/Monaco has the very tight 180º corner, SSR11 is tricky but rewarding when you get it right, Grand Valley at least has the bridge (one of the most beautiful sections of racetrack in GT IMO), Seca has the corkscrew, Tokyo has that fast section of corners in the middle through all the trees, and Trial Mountain has the tricky switchback right before the finish line.