Viper Racing

Overhead replay view:
Press [F12] during a replay for an overhead view. Press the keys on the numeric keypad to adjust the camera view.

Lamborghini:
Select "Options", then choose "Hacks". Type Morepowerthebetter to unlock a Lamborghini.

More money:
Select "Options", then choose "Hacks". Type getdamoneyfast.

No break downs:
Select "Options", then choose "Hacks". Type Morphene.

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.
Information in this section was contributed by Rudd2dTop.

Hint: 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.
Information in this section was contributed by Knex22585.

Hint: 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.
Information in this section was contributed by Alan Mick.

Hint: Shortcut:
When racing on the first track, you can save some time by driving over the grass where the "S" turn is located.
Information in this section was contributed by LiLeRiC45672.

Hint: 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.
Information in this section was contributed by The Muffin Man.

Hint: Flying car:
Choose the "Options" selection at the main menu, then "Hacks", then click "Pave the World", and make sure you know which button does the wheelie. Then, go to quick race and choose a track such as Rocky Island or any other with steep hills and mountains. Start driving, find a steep hill that you barely or cannot drive up. Make sure this slope is flat and very long (mountain or something similar). Accelerate in first gear slowly; just enough to get your car on the slope. Then hold [Wheelie]. Your car will start to climb the hill, hitting it with the bumpers as it goes up. You release the gas, but keep [Wheelie] held. If the hill is long enough, the car will keep accelerating and become airborne. Do not release [Wheelie]. Your car should be pointed straight up and be accelerating as if it were a plane. Unfortunately, you cannot steer, but it is still a sick drop when you release [Wheelie].
Information in this section was contributed by Phil Lincoln.

Anywhere in any level (you do not have to press up against a mountain unless you want to get very high), you can glide around. To do this, first, press [F9] to switch your camera view to overhead. Then, lightly tap W for a wheelie. Do this carefully until you get your car pointing straight up. At this point, promptly hold W. This should cause you to lift up and fly around. [Screenshot 1] [Screenshot 2]