Mileage Glitch
Win or lose against any rival and when it comes to the "Free Run", "Replay" and "Save Replay" screen, take the cd out, close the disc tray and hit "Free Run". The road and music will disappear and you will be on Auto Pilot. You will realize that you're mileage will go up. Use this glitch to unlock the engine swap easily. To continue, just put the disc back in.

Natural Aspired Boost
This must be done with a NA car, meaning non-turbo cars. At the map screen while choosing an area to enter, press and hold select. Enter the area you choose while holding select. Keep holding select through the loading screen, and up until the auto-pilot feature comes on. Begin a race, and now, you can use the boost. NOTE: Use the boost wisely because the water and oil temperature will rise drastically.

A change of weather.
Under the following game modes: "Time Attack", "Free Run", or "VS Battle" you can choose more than just sunshine or clear rain. This only works when you select rain. While you are selecting the course starting point, hold down the corresponding button below to add the effects of fog, thunder, or snow.

Hold Down Button L2 - Fog
Hold Down Button L1 - Snow
Hold Down Button R2 - Thunder


Swapped Natuarl Aspired engines available
L4, L6, V6, V8, and Rotary engines.

Swapped turbo engines available
L4, L6, V6, V8, F4, F6, and Rotary engines

Turbo, Natural Aspired engines
Drive 1242 miles on ONE car, on that ONE car, or complete %100 of the game to use with any car