Titan car:
Go to player name and type in HOTROD to get the Titan car.

Enter these codes as a player name in the "User name" option. Note: Gamesaving will be disabled.

All police cars (in Hot Pursuit mode):
NFS PD

Police Helicopter (in Test Drive mode):
WHIRLY

Super Car:
HOTROD

Titan Car:
FLASH

Dashboard view:
At the Loading screen, press and hold Up + Triangle + X.

Drunk mode:
At the Loading screen, press and hold Up + L2 + R1.

Turbo:
First enable Dashboard view then, while driving, press Up.

Slow CPU cars:
At the Loading screen, press and hold Left + Square + Circle.

Heavy car:
At the Loading screen, press and hold Left + Square + Circle.

Drive Special Edition Corvette:
To unlock the race-bread Corvette, you must place first in the Corvette Pro Cup.

Drive Special Edition Porsche 911:
To unlock the race-bread Porsche, you must place first in the Porsche Pro Cup.

Drive Titan Hotrod:
To unlock the Titan, you must win all 8 Special Events