More Money
In the options menu choose "hacks" and type: getdamoneyfast.

No Break Downs
In the options menu choose "hacks" and type: morphene.

Drive Lamborghini
Go into the game under options, hacks, then type in Morepowerthebetter.

Other cars:
When going into "Hacks" you can select new cars such as sports car, air plane, exotic, etc. You also can get horn balls which wreck the other drivers. Note: You can fly the plane if you do not hit anything. Go a straightaway and the plane will go in the air.

Drive on water:
Enter Quick Race mode and disable damage. Select Rock Island as a course, and go past the lighthouse to the side of the castle. Drive off the ledge onto the water, but do not go too far.

Clutch:
Press C during game play to separate the clutch plates, putting the car out of gear. This is helpful when you want to slide around corners slowly while keeping the engine at full throttle.

Shortcut:
When racing on the first track, you can save some time by driving over the grass where the "S" turn is located.

360 spin:
Find a flat area or straightway (for example, Bejemidi or Dayton). Go fast (about 100mph) and simultaneously engage reverse and left or right steering. Keep the throttle at 100% power. Hold these until the nose of the car is pointing towards you then switch the direction you are steering. For example, if you were steering left, go right and vice versa. Keep the direction switched until the nose comes around straight. Then, release the reverse and steering.