POLICE WITH GERMAN ACCENT
In 'hot pursuit' you shall press start to start the race and after you have been over in the 'game options' screen you shall immediatly press UP + R1 + R2 now all the police officers will sound like arnold schwarzenegger.

Cheat                                Effect
UP + X + T                   Slow motion mode
UP + L1 + R2                 German police
DOWN + L1 + R2          Spanish police
LEFT + L1 + R2             Italian police
RIGHT + L1 + R2          French police
LEFT + S + C               Acceleration