Apparently 100 different tracks (foward and reverse).
Green Meanie - From memory, polyphony had no problems with the size of the PS2 DVDs, so i cannot see that theres a problem. They can always use multi layering I suppose, or just have a second disc, one for \'new\' cars, and one for \'old\', i doubt it though, as 4.4 gigs is alota space.
Apparent confirmed tracks include New Tahiti track, Hong Kong city circuit, New York, Paris city circuit, Gold Coast Australia (this is a rumour I\'ve heard from accouple of places) and Grand Canyon