from "nfs planet"
NFS UC: First Cheats available
NFS Undercover NFSNation and NFSCars published some cheats for Need for Speed Undercover, which were generated using mathematical analysis. These cheats were not released by EA, so presumably the "official" will have a more readable format than these:
Enter Code 1 or Code 2 at "Options" -> "Secret Codes":
$EDSOC = $10,000 in-game currency
-KJ3=E = NeedforSpeed.com Lotus Elise Bonus car
0;5M2; = Die-Cast Lexus IS F Bonus Car
?P:COL = Die-Cast Nissan 240SX (S13) Bonus Car
!2ODBJ: = Die-Cast Volkwagen R32 Bonus Car
%%$3/" = $10,000 in-game currency
.+)3>$ = NeedforSpeed.com Lotus Elise Bonus car
0;6,2; = Die-Cast Lexus IS F Bonus Car
@/;#/+ = Die-Cast Nissan 240SX (S13) Bonus Car
>!3/$"): = Die-Cast Volkwagen R32 Bonus Car
Note: Code 1 contains the LETTER O, except 0;5M2; -> contains a zero.
Code 2 contains only zeros.
So far these cheats are functioning on the PC version of NFS Undercover. On Xbox360 please use Code 1.
On Playstation 3 use the following codesCodes:
$10,000 in-game currency: Code 2
NeedforSpeed.com Lotus Elise Bonus car: Code 1
all others: Code 1 or Code 2
so guys try out these cheats if they work for u or not