Aero Gauge cheats and cheat codes for Nintendo 64

Unlock vehicles:
Dominator vehicle: Win the game with Black Lighting in Expert mode.
Prowler vehicle: Win the game with the Hornet in Expert mode.
Reaper vehicle: Win the game with the Shredder in Expert mode.
Vengeance vehicle: Win the game with the Avenger in Expert mode.

Unlock China Town Jam track
Win 1st place on every track in Grand Prix mode in Expert mode.

Unlock Neo Speed Way track
Win 1st place on every track in Grand Prix mode in Intermediate difficulty.

Change vehicle color:
Highlight a vehicle, after hit R on the vehicle selection screen.

Faster start
Before a race starting, hold A + B. 
When the commentator says "Ready", release B.

Bypass credits:
Hit Start, when the credits appear after a Grand Prix.

Unlock Nintendo 64 controller vehicle
Play in time attack mode.  Try to reach a time that ends in .064 seconds.
Hit R while selecting this vehicle to change colors from 
green, red, blue, black, or yellow.

Turbo
Begin a new game and hold A to speed up. Hold Z and press Analog-joystick 
Left or Right, release A and Z, after quickly hit A + Z. 
If the code is accepted, you should hear a sound.

Unlock all vehicles and tracks:
Hold L + R + Z before the title screen appears on controller 2.
Keep these buttons held, then on controller 2 when "Push Start"
flashes on the title screen, quickly press and release Up + C-Down.
Then on controller 1 before the title screen disappears, hit Start. 
Note: The timing of this cheatcode is particularly sensitive. 
Every buttons must be pressed and released at exactly the same 
time as indicated. Submited by machoman