We have 1 cheats and tips on Xbox. If you have any cheats or tips for Sega GT Online please send them in here. You can also ask your question on our Sega GT Online Questions & Answers page.
Have a saved game file from Sega GT 2002 on the Xbox hard drive and then go to the 'Load File' option under 'Sega GT' mode and select 'Perk' to get extra money at the start of the game.