Pick FEATURES in the main menu, now pick CREATE-A-CAR. Submit the case-sensitive first name extra and drivers as a case-sensitive last name.

Pick FEATURES in the main menu, now pick CREATE-A-CAR. Submit the case-sensitive first name Seymore and Cameos as a case-sensitive last name.

By reaching level 16 in your EA Bio

By reaching level 18 in your EA Bio.

Various other Thunder Plates can be unlocked by uploading your EA Bio from other 2004 EA titles, such as NCAA Football 2004, March Madness 2004, Madden 2004, etc.

Win a race under the medium, hard or extreme difficulty setting to unlock a paint scheme for that driver.

Win a race under the medium, hard or extreme difficulty setting to unlock an exhibition or alternate race for that track.

To get a faster car in any mode, hold the Left Analog-stick in the direction that you are driving.

Go to season mode and then to "Custom Schedule". You can unlock night races for the day tracks.

Win the race that has a locked version of an alternate night track under the veteran difficulty, 3% race length, and damage on visual only. Repeat this method on all tracks that have a locked version of it.

To unlock a road course for Texas, Talladega, Pocono, Phoenix, Homestead or Daytona, race the original track on the medium or veteran difficulty. 3% is the easiest race length and the fastest.

Go to season mode. Choose custom for tracks. Then, choose locked tracks on medium. You can race at whichever locked track you choose. if you win race, you unlock a track. if you also have a locked car, you also win the first locked car.

In multi player mode, you can drive a locked car. This only works with one person at a time. Have a player choose their car, then have the other player go to the same car. Have them change to a locked car. After that, they can choose their car.