Hint
When the Infogrammes screen appears press up,down,triangle,circle then up,down, triangle+circle at the same time, then lock off should appear and press any one of these:press and hold L1 for no time on arcade games L2 to narrow the tracks Left+R1 to replace the peogeot car with a jeep or hold left+L1+L2+R1+R2 for them all but not the extra car.

Various Cheats
At the while intro screen, when the infogrames logo appears, quickly press Up, Down, Triangle + Circle. The message "Lock Off" will appear. Now press any of the following "Codes":
Effect Code
Time Off Left + L1
Narrow On Left + L2
Extra Car Left + R1
Restart On Left + R2