Gran Turismo for PSP, developed by Polyphony Digital Inc., offers a dynamic vehicle roster that changes seasonally based on playtime, featuring over 800 models (expanding to over 4,500 with paint variations) from top global manufacturers like Ferrari and Nissan. The game includes over 30 optimized tracks from the series and introduces the ability to share and trade vehicles via PSP's ad hoc mode, with some cars only obtainable through trading.
