NFS MOST WANTED

$250,000:
Press Up, Down, Up, Down, Left, Right, Left, Right at the "Press Start" screen.

One Stop Shop marker:
Press Up(2), Down(2), Left, Right, Up, Down at the "Press Start" screen. A special marker for the Junkman Engine part will appear in the back room of the One Stop Shop in career mode. Note: This code can only be enabled once per career.
ROMKE DE LANGE and David.

Castrol Syntec Ford GT:
Press Left, Right, Left, Right, Up, Down, Up, Down at the "Press Start" screen.

Porsche Cayman:
Press L1, R1(3), Right, Left, Right, Down at the "Press Start" screen.
ROMKE DE LANGE.

Burger King challenge:
Press Up, Down, Up, Down, Left, Right, Left, Right at the "Press Start" screen. A confirmation message stating that you have unlocked a "Special Challenge Event" will appear. Go into the main menu, then choose "Challenge Series". Go all the way to the bottom and choose #59, the Burger King Challenge. Complete that challenge and you will be able to use all Junkman parts on cars you have in "My Cars". Note : Before applying Junkman parts, press X in the performance parts place to get them as high as they can go, then apply Junkman to each part. By doing this, it gives better stat raises.
13Bobby37 and Silviajdn2085.

$10,000:
To get an extra $10,000 in career mode have a Need For Speed Underground or Need For Speed Underground 2 career game saved on your memory card. After the prologue you will get $10,000.
h, fsidnm.