F1 Pole Position 64 Cheats for Nintendo 64
Unlock Unlimited Fuel
When you are in Grand Prix mode set the fuel setting to 10 percent and you will be able to get unlimited fuel for your car.
Unlock Engine Select:
Beat the game as World Grand Prix Champion and then restart the game. At the driver select screen highlight a driver and press Left-C or Right-C to change to an engine of your choice.