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Bonus cars

EA Sports car win the Road Course Challenge
EA.com car win the Superspeedway Shootout on either the veteran or legend difficulty setting
Black Box classic car win the Short Track Challenge
Black Box exotic car win the half season
2nd John Andretti car hold R1 and press Square, Triangle, Square, Triangle

Treasure Island track

Win during season mode on the veteran difficulty setting.

Proving grounds track

From the Options Menu. Select "Credits", then go to "Development". You will get the video sequence, which you have to watch. When the credits begin to roll, hold R1 and press Left, Circle, Up, Down, Right (x3).

Bonus Drivers

For each of these cheats, you start from the Options Menu. Select "Credits", then go to "Development". You will get the video sequence, which you have to watch. When the credits begin to roll, do the following for each character:

Driver Code

KC Monoxide (#101) hold L2 and press Square, Circle, X, Down, Up, Right, Left
"Shorty" Leung (#100) hold R2 and press Square, Circle, X, Up, Down, Left, Right
Jocko Michaels (#167) hold L1 and press Square, Triangle, Square, Circle, Square, X
Asher Boldt (#153) hold L2 and press Square, Circle, Triangle, X

Running out of fuel

Select Chad Little (John Deere Ford) in championship mode. Then, go to "NASCAR Options" and set it to 5%. Late in the race, you will blow out tires and run out of fuel.

Pass the pace car

When under a caution and a few spaces behind the pace car, answer "Yes" when the game asks you to pit, When you get to the pits, abort if you are behind the pace car. The game should allow you to pass it. If not, you will still gain some positions.