Proving grounds track:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold R1 and press Left, Circle, Up, Down, Right(3) when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry.

Treasure Island track:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold L2 and press Square, Circle, Square, Up(2), Down, Up, Left, Right, X when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry. Alternately, win a season under the veteran difficulty setting.

Asher Boldt car:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold L2 and press Square, Circle, Triangle, X when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry.

Jocko Michaels car:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold L1 and press Square, Triangle, Square, Circle, Square, X when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry.

John Andretti's second car:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold R1 and press Square, Triangle, Square, Triangle when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry.

KC Monoxide car:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold L2 and press Square, Circle, X, Down, Up, Right, Left when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry.

Shorty Leung car:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold R2 and press Square, Circle, X, Up, Down, Left, Right when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry.

4th From The Sun car:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold L1 then press Up, Square, Left, Circle, X, Square, Triangle, Right when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry.

1-on-1 mode:
Select "Credits", then "Development" at the options menu. Wait for the FMV sequence to complete, then hold R1 then press Circle(3) when the credits begin to roll. The phrase "Oh Blackbox Baby" will be spoken to confirm the correct code entry. Note: This code is only for two player mode.

Black Box Classic car:
Win the Short Track Challenge to unlock the Black Box Classic car.

Black Box Exotic car:
Win the Half Season to unlock the Black Box Exotic car.

EA Sports car:
Win the Road Course Challenge to unlock the EA Sports car.

EA.com car:
Win the Superspeedway Shootout under either veteran or legend difficulty settings.

Richard Petty car:
Win a season under the rookie difficulty setting.

Glitch: Saved games:
Be careful before finishing any season modes. When you save, the file may get corrupted. "xixixixixixixixixixixi" will appear in place of the people that have set the records.

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