Need for Speed: ProStreet

At the "Code Entry" menu in Career mode, enter one of the following
codes to activate the corresponding cheat function.

Note: Most codes can only be used once. Therefore it is recommended that
the auto-save option be disabled before using the codes in the
event you wish to revert the game to its original state.

MASTERCODE - unlock all bonuses
UNLOCKALLTHINGS - unlock all bonuses
1MA9X99 - extra $2,000 in Career mode
W2iOLLO1 - extra $4,000 in Career mode
L1iS97A1 - extra $8,000 in Career mode
CASHMONEY - extra $10,000 in Career mode
1Mi9K7E1 - extra $10,000 in Career mode
LEIPZIG - extra $10,000 in Career mode
SAFETYNET - get five free repair markers in Career mode
ITSABOUTYOU - unlock Audi TT 3.8 Quattro in Career mode
HORSEPOWER - unlock Chevrolet Chevelle SS in Career mode
ZEROZEROZERO - unlock Coke Zero VW Golf GTI & Vinyl in Career mode
MITSUBISHIGOFAR - unlock the Mitsubishi Lancer Evolution in Career mode
CASTROLSYNTEC - unlock the Castrol Syntec Vinyl
ENERGIZERLITHIUM - unlock Energizer Lithium Dodge Viper SRT10
& Vinyl in Career mode
REGGAME - get $10,000 and unlock some cars in Career mode,
including the Chevrolet Camaro Concept,
Ford Mustang GT 500, and Nissan R34 Skyline
WORLDSLLONGESTLASTING - unlock the K&N Vinyl

Recommended dragster:
The best dragster is the Nissan 240SX. The first chance you get,
make the 240SX your drag choice. Put on all the best performance
parts you can afford. Remember, you need a lot of speed and traction.
After you start setting new track records, you will be invited to race
Karol Monroe the Drag King.