Start the game with the following as your case-sensitive driver name:
BindI All cars & toys
spiDER All cars
fellA All trailers
MeFf All toys
BiNdErS Unlock Everything(PAL Version)
Hold down R1 during the countdown in order to start with a speed boost.
Thanks to Revolution readers Craig, Arthur "THE KHAI" Thrasher, Hotsauce, Dylan Seeger, Tbone8950, greg142002, Ghetto child David R, Steve Machemer, Michaela and Andrew Carrasco!