Please note VGF's cheat codes have relocated to the main page.
Change Car Attributes Pause,
go to the Race Statistics screen, and press and hold: L1 + L2 + R1 + R2 + X +
Circle + Select.
Extra Formula One Cars Register: Go Bruins!
Extra Stock Cars Register: Go Bears!
Option Menu Pause, go to Race Standings, and press Circle+X.