Gran Turismo - Sony PSP Dynamic Vehicle Roster - Based on the amount of time Gran Turismo is played, the in-game calendar will change the dealer car lineup seasonally. Developed by Polyphony Digital Inc. for PSP - Gran Turismo's debut on PSP is developed by the internal team behind the world's best-selling racing series. Over 800 vehicle models - Players can race their favorite vehicles from the top manufacturers around the globe, including Ferrari, Nissan, and more. The vehicle model count climbs to over 4,500 when the various paint configurations are included. Over 30 Tracks from Around the World - Famous circuits and some of the favorite environments from the Gran Turismo series have been optimized for racing on PSP. For the first time in the Gran Turismo series, players can share and trade the vehicles they have acquired throughout the game with others via PSP's ad hoc mode, with certain vehicles acquirable only by trade.