All championships: 
Enter NUMBA" as a name in championship mode,
then return to the main menu.

Le Mans mode: 
Enter WOMBAT as a name in championship mode,
then return to the main menu.

View credits: 
Enter HEINEY as a name in championship mode,
then return to the main menu.

All tracks: 
Enter SPEEDY as a name in championship mode,
then return to the main menu.

All cars:
Enter ACO as a name in championship mode, 
then return to the main menu.