Need for Speed: ProStreet cheat

NOTE: These are the main Need for Speed: ProStreet cheats that are usually applied by pressing down the right key combination. Please find the instructions on how to use these cheats below.

Cheat Codes
Start or resume a career. From the career menu, select CODE ENTRY. Then select SECRET CODE and type any of the following cheat codes and press [ENTER]. Some codes may only be used once per career.

SAFETYNET: 5 Free Repair Markers
CASHMONEY: Add $10,000
REGGAME: Add $10,000 plus Bonus Cars
COLLECTORSED&: Free Collector's Edition Upgrade
UNLOCKALLTHINGS: Unlock All Bonuses
ITSABOUTYOU: Unlock Audi TT3.8 Quattro

CASTROLSYNTEC: Unlock Castrol Syntec Decal
HORSEPOWER: Unlock Chevrolet Chevelle SS
ZEROZEROZERO: Unlock Coke Zero Volkswagen Golf GTI
ENERGIZERLITHIUM: Unlock Energizer Lithium Decal
WORLDSLONGESTLASTING: Unlock Energizer Lithium Dodge Viper
MITSUBISHIGOFAR: Unlock Mitsubishi Lancer Evolution

5 Elite Kings Cars
As you progress through the game, you challenge the 5 Kings. (Showdown, Drag, Drift, Grip & Speed). Once you beat them, you will get their car as a reward.

06 Mustang GT (Karol Monroe): Beat Drag King in Career Mode.
08 Evo X (Ryo Watanabe): Beat Showdown King in Career Mode.
08 M3 E92 (Ray Krieger): Beat Grip King in Career Mode.
65 GTO (Nate Denver): Beat Speed King in Career Mode.
95 RX-7 (Aki Kimura): Beat Drift King in Career Mode.