Additional money:
Go to the main menu then press Down, Up, Left, Down, Right, Up, 
Square, Triangle. Note: You can use this cheat code only one time.

Infinite SpeedBreaker:
Go to the main menu then press Down, Right, Right, Left, Right,
Up, Down, Square.

Infinite nitrous:
Go to the main menu then press Left, Up, Left, Down, Left, 
Down, Right, Square.

Need For Speed Carbon vinyl:
Go to the main menu then press Right, Up, Down, Up, Down, 
Left, Right, Square.

Cardboard box and driver vinyl:
Go to the main menu then press Up, Up, Down(4 times), Up, Square.

Infinite crew charge:
Go to the main menu then press Down, Up, Up, Right, Left, 
Left, Right, Square.

Unlock Collectors edition cars:
Complete the following tasks in the Challenge Series

Muscle car:
Dodge Charger RT Classic unlocked - Beat the 21st Muscle Car Gang. 

Tuner cars:
Nissan 240SX unlocked - Complete all 3 Checkpoint challenges. 

Mazda RX7 unlocked - Beat Kenji in Boss Battle mode. 

Exotic cars:
Jaguar XK 2007 unlocked - Complete all three Turf War races. 

Aston Martin DB9 unlocked - Beat Wolf in Boss Battle mode. 

Get bonus Burnout vinyl:
Have a saved game file from Burnout Revenge on your memory card
then go to the bonus section of the vinyls. 

Get $10,000 bonus cash:
Have a saved game file from NFS: Most Wanted on your memory card 
then start the career mode. 

Easy wins:
Use a scout (example: Yumi) in races where crew members are used.
If you do not win the 1st place on the race, your scout will. 

Crew members:
Neville - Available at start.      

Sal joins - Play at least six races.

Yumi joins - Beat Kenji/Bushido.

Colinjoins - Beat Wolf/TFK.

Samsonjoins - Beat Angie/21st Street.

Nikki joins - Beat all three beginning Bosses.