For access to some secret cars, hold View 2 at the car selection screen. You'll gain a school bus, an ATV, and a police car.
Bonus Tracks
To access three tracks that you normally can not race without "Crusin' the USA", go to the track selection screen and hold the View buttons shown below.
Code Track
1+2 US 101 becomes Golden Gate Park
1+3 Beverly Hills becomes Indiana
2+3 Grand Canyon becomes San Francisco
Free Game
To get a free game, you must have won the previous two races. Then, after losing the third, press gas pedal while pushing the Start button!
New Car
Go to the car select screen. Put the wheel at the first car. Hold View 1, turn the wheel all the way to the right, all the way to the left, all the way to the right, all the way to the left, all the way to the right, and all the way to the left. Press the gas. The red Ferrarri will turn greenish-blue. It is faster and more stable than a regular Ferrarri.
Super Car
At the car selection screen hold the red view button and turn the steering wheel all the way to the left then all the way to right so it is on the selection of the Ferrari. Then when select it and push the start button rapidly until it becomes a greyish colour. This is the fastest and most stable car in the game.
Turbo Boost
While driving, pump the gas twice and you will do a wheelie get a brief turbo boost.
Bonus Cars...