Cheat Mode
Go to "Cheats" section and then enter one of the following codes:
[Up], [Up], [Up], [Up], [Left], [Down], [Up], [Right], [Down], [Down], [Down], [Down] - Unlock All Cars
[Start], [Left], [Select], [Right], [Right], [Triangle], [X], [Square], [Start], [R], [Down], [Select] - Unlock All Events