While there are no traditional "button code" cheats for unlimited money in Gran Turismo 5 on PS3, players can use high-payout race grinds and save file editors to accumulate millions of credits quickly.

: In "Options" -> "Units/Languages," hold L1 + R1 and press Up, Up, Up, Right, Right, Right, Up, Up, Right, Right, Up, Right, Start . 4. Quick Rewards & Unlockables What is the fastest way to make money in Gran Turismo 5?

For players who want an immediate influx of cash without grinding, a third-party PC tool is required.

Grinding specific races is the most reliable way to earn money, especially since official seasonal events (which offered massive bonuses) have been discontinued. Requirements : Reach Level 23.