Over 40 machines will be available for players to tune up and tweak in order to overcome a new physics model. They can then enter their cars in an online match, attempting to best up to 16 opponents. In the offline mode, an overhauled computer AI will hopefully provide racers with a challenge as they tear across tracks such as Eiger Nordwand, London City, and Suzuka. The new Gran Turismo TV will show off the action inbetween rounds.
The real Gran Turismo 5 will arrive at some point in 2008. In the meantime, check out some screens of the Prologue, which is due out on October 26.