Win all races in single race mode under the normal difficulty setting to unlock an option at the game status menu to give 10,000,000 credits and a Bronze trophy for all licenses not already unlocked to a save file for Gran Turismo 3 A-spec. Alternately, successfully complete 50% of the game. If you have a Gran Turismo 3 A-spec game saved on your memory card, you will get 10,000,000 credits and new licenses for that game.