Here are some cheats and tips for the game Nascar Thunder 2003.
Fantasy drivers:
Enter Extra Drivers as a name at the create a car screen.
Dale Earnhardt:
Enter Dale Earnhardt as a name at the create a car screen.
Richard Petty:
Enter Richard Petty as a name at the create a car screen.
Tiburon Speedway track:
Use a memory card with a saved file from an EA Sports 2003 game.
Thunder Plates:
Select the Thunder Challenge or Lightning Challenge at the
game mode screen. Complete the various challenges to get new
Thunder Plates. Note: The Plates are awarded randomly from
game to game — winning a certain track with a particular
driver will not unlock the same Plate between games.