You get Extra Trail mode when you bet Gran Prix mode the first time. In Extra Trail mode you can get 16 of the 320 cars in the game.

If you get all 320 cars, the Pacman car will appear as the 9th car in your garage! You will also get a new music track, "Eat Em Up."

At the start of the race hold L2+R2 to get a turbo start.

While playing R4 on the course "Heaven & Hell" if you push left right right right very quickly on the control pad before the countdown clock says 3 a large bird will swoop down over your car and lead your way down the track for as long as you can keep up with him. This code is a bit tricky because you have to be quick and Ive only been able to get it to work in Grand Prix Mode so far.

If you have already saved a Rage Racer game to your memory card, its team banners will appear on the windshields of RR Type 4 cars!