Repeat steps 5 through 8 as many times as desired to get an unlimited amount of money. You will still own all the previously purchased engines and parts and have the money you got from selling the engines. Leave the lobby, then quickly press B to exit to the title screen, with the 'Press A to Start' message. Press the Xbox Guide button, and join your friend's private lobby. Enter the engine purchase menu, and sell every engine.
Exit to the main menu to save the engines and parts that were purchased. Buy every part for every engine, including all aspiration parts. This trick requires some starting money, a private lobby on Xbox Live, and an online friend.ġ.
