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. Also, using some codes may reset the performance of cars that have previously been improved.
Enter "UNLOCKALLTHINGS" as a code to unlock all bonuses.
Enter "1MA9X99" as a code to get an extra $2,000 in Career mode.
Enter "W2iOLLO1" as a code to get an extra $4,000 in Career mode.
Enter "L1iS97A1" as a code to get an extra $8,000 in Career mode.
Enter "CASHMONEY" or "1Mi9K7E1" as a code to get an extra $10,000 in Career mode.
Enter "REGGAME" as a code to get $10,000 and unlock some cars in Career mode, including the Chevrolet Camaro Concept, Ford Mustang GT 500, and Nissan R34 Skyline.
Five free repair markers
Enter "SAFETYNET" as a code to get five free repair markers in Career mode.
Audi TT 3.8 Quattro
Enter "ITSABOUTYOU" as a code to unlock the Audi TT 3.8 Quattro in Career mode.
Chevrolet Chevelle SS
Enter "HORSEPOWER" as a code to unlock the Chevrolet Chevelle SS in Career mode.
Coke Zero Volkswagen Golf GTI and Vinyl
Enter "ZEROZEROZERO" as a code to unlock the Coke Zero Volkswagen Golf GTI and Vinyl in Career mode.
Energizer Lithium Dodge Viper SRT10 and Vinyl
Enter "ENERGIZERLITHIUM" as a code to unlock the Energizer Lithium Dodge Viper SRT10 and Vinyl in Career mode.
Mitsubishi Lancer Evolution
Enter "MITSUBISHIGOFAR" as a code to unlock the Mitsubishi Lancer Evolution in Career mode.
Castrol Syntec Vinyl
Enter "CASTROLSYNTEC" as a code to unlock the Castrol Syntec Vinyl.
Enter "WORLDSLONGESTLASTING" as a code to unlock the K&N Vinyl.
Enter "LEIPZIG" as a code to lock all cars previously unlocked with the "UNLOCKALLTHINGS" code.
Have a saved game file from Need For Speed: Carbon on your memory card to get $10,000, five small repair markers, and a large repair marker.
Defeat the indicated opponent in Career mode to unlock the corresponding car:
1965 GTO: Speed King (Nate Denver)
1995 RX-7: Drift King (Aki Kimura)
GT: Drag King (Karol Monroe)
2008 Evo X: Showdown King (Ryo Watanabe)
2008 M3 E92: Grip King (Ray Krieger)
Free repairs for all cars
Defeat all of the Kings to unlock free repairs for all your cars.
Enter the "UNLOCKALLTHINGS" code. Exit to the main menu, reload Career mode, and you should now have the Nissan 240 SX, modern Pontiac GTO, Chevy Cobalt SS, and black Dodge Viper SRT 10 in your garage. Sell those four cars to get approximately $90,000. Then, save your career, and reset the game. Load your saved career. Enter the "UNLOCKALLTHINGS" code again. Exit to the main menu, reload Career mode, then go to your garage. The Nissan 240 SX, modern Pontiac GTO, Chevy Cobalt SS, and black Dodge Viper SRT 10 should be in your garage again. Repeat this process as much as desired.
Free Repair Markers
Enter into any Street King Tiers event. You will be given two free Repair Markers. Leave the Race Day, and reenter to get two more free Repair Markers. Repeat this as many times as desired.
Preventing points deducted for damage
Normally points get deducted for wrecking your vehicle when you participate in any career race. However, if you race in any one race and wreck your car, do not repair it. Any other race that you race with that car will no longer take points off for damage. By doing this, you can get the full 500 points toward dominating an event. Note: This only works while in the same car previously damaged during an earlier event.
The Toyota Supra with all Level 4 performance parts can do the quarter mile in under 7 seconds if tuned properly. -From: Barry Woods
A really good dragster is the Dodge Challenger R/T. The car runs 7.6 seconds in the quarter mile fully upgraded. If you make the rear shocks stiff, the car will stand on the rear end all the way down the track, and will do over 1,000 foot wheelies. If you make the rear shocks soft, you can run 7.6 seconds in the quarter mile and not have to worry about the front end lifting up. Some tuning will be needed, and knowledge of cars will definitely help.
A good dragster is the Nissan 240SX. The first chance you get, choose the 240SX. 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.
Defeating Ryo Watanabe
Use the following cars to defeat Ryo Watanabe. Upgrade all cars with Level 4 performance parts and max out the aerodynamics. Note: Bring lots of Total Markers to Race Day.
Grip: Pagani Zonda. Use a "Free Car Marker" for this car, if available. You can also use this car to defeat the Grip King.
Drag: Ford Shelby GT500 or Chevrolet Chevelle SS. Do not do anything to the aerodynamics of the Chevelle. You can also use those cars to defeat the Drag King.
Drift: BMW Z4 M Coupe. Even though it has low stats, it is a great drift car. You can use this car to defeat the Drift King. Alternately, use the Mazda RX-7 if you have won it from the Drift King. It already has all Level 4 performance parts; all you have to do to it is increase its aerodynamics.
Speed: Ford GT. You can also use this car to defeat the Speed King.
Additional cars list
BMW M3 E46
BMW M3 E92
Chevrolet Camaro SS
Chevrolet Chevelle SS
Chevrolet Cobalt SS
Chevrolet Corvette C6
Chevrolet Corvette Z06
Dodge Challenger R/T
Dodge Charger R/T
Dodge Viper SRT10
Ford Escort RS Cosworth
Ford Focus ST
Ford Mustang GT '06
Ford Shelby GT500
Infiniti G35 (V35)
Lamborghini Murcielago LP640
Mitsubishi Lancer Evolution IX
Nissan 240SX (S13)
Nissan 350Z (Z33)
Nissan GT-R Proto
Nissan Skyline GT-R (R34)
Nissan GT-R (R35)
Nissan Silvia (S15)
Pagani Zonda F
Plymouth Hemi Cuda
Pontiac GTO '65
Porsche Cayman S
Porsche 911 Turbo
Shelby GT500 '67
Subaru Impreza WRX STI
Toyota Corolla GTS (AE86)
Volkswagen Golf GTI