Various cheats
     Type  the following codes at the intro screen. This is the screen
that  says "CLICK to Continue" right after the intro movies and BEFORE
the  main  menu.  If entered correctly, a message will come up letting
you know what you have unlocked.

Cheat code:        Effect:
iammostwanted      Unlocked cars
givemethegto       Releases the GTO
castrol            Unlock Castrol SYNTEC Ford GT in Bonus Cars
burgerking         Unlock Burger King Special Event in Challenge Series

Bonus $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
hard drive. After the prologue you will have $40,000.

Unlock Additional cars:
     Defeat the indicated Blacklist Boss to win the corresponding car.

Aston Martin DB9: Blacklist Boss 7
Audi A3 3.2 Quattro: Blacklist Boss 15
Audi A4 3.2 FSI Quattro: Blacklist Boss 14
Audi TT 3.2 Quattro: Blacklist Boss 15
BMW GTR (Race version): Blacklist Boss 1
Cadillac CTS: Blacklist Boss 12
Corvette C6: Blacklist Boss 5
Corvette C6.R: Complete 100% of the game
Dodge Viper SRT 10: Blacklist Boss 6
Ford GT: Blacklist Boss 4
Lamborghini Gallardo: Blacklist Boss 6
Lamborghini Murcielago: Blacklist Boss 4
Lotus Elise: Blacklist Boss 8
Mazda RX-7: Blacklist Boss 9
Mazda RX-8: Blacklist Boss 12
Mercedes-Benz CLK 500: Blacklist Boss 8
Mercedes-Benz SL 500: Blacklist Boss 11
Mercedes-Benz SLR McLaren: Blacklist Boss 3
Mitsubishi Eclipse: Blacklist Boss 14
Mitsubishi Lancer Evolution VIII: Blacklist Boss 11
Mustang GT: Blacklist Boss 12
Pontiac GTO: Blacklist Boss 10
Porsche 911 Carrera S: Blacklist Boss 7
Porsche 911 Turbo S: Blacklist Boss 5
Porsche Carrera GT: Blacklist Boss 3
Porsche Cayman S: Blacklist Boss 10
Renault Clio V6: Blacklist Boss 13
Subaru Impreza WRX STi: Blacklist Boss 9
Toyota Supra: Blacklist Boss 13
Vauxhall Monaro VXR: Blacklist Boss 10