All cars and tracks
Enter multi-player mode and select the "Peer To Peer" option, but choose to race alone. You will be able to select any car on any track.
Infinite money
Purchase a used car and choose an "Overall" repair. When completed, the value of your car will be higher than the purchase price and the cost of the repairs. Sell the car, purchase another used car and repeat as needed.
Cheat Codes
Enter the "Create Player" option from the main menu, then enter one of the following names to activate the corresponding cheat function:
All cars have 933 physics - yraGyraG
Drive with Rally physics - Dakar
Destruction Derby mode - Smash Up
Small R/C cars - Gulliver
Heavier cars - fetherw8
Cops on most tracks in quick race mode - fuzzyfuz
Get Your Car a Rally Skin
It works only with 996 turbo 00, Boxter 97, or the 911 Carrera RS. All you have to do is open the folder (need for speed.../game data/car data/) and change the file names of the cars. There are two types of cars each 996, 996 f, boxter, boxter f, and carrera rs. Now you have to rename them the ordinary 996 file to 996f and 996f to 996 and so on.
More speed in single player mode
For more speed in single player mode, when you get to the player select menu, choose the create player option. Then enter this code, freewill, in the name box. When you click the done button there should be a confimation sound.
Car Handling
When driving any car, there are several things to keep in mind. When the rpm reaches more than 5,100 rpm, do not attempt to make a sharp turn, or try to turn off a jump. With a vehicle with good handling (for example the 1967 911), if you feel it shaking or losing control, slowly alternate from left to right, carefully. When playing "Evolution", and the variety of cars are permitted, use a ''car compare", because the Mixed class 2/3 in the Golden Era, the 914/4 , 911S (Targa also), and the Carrera 2.7L are permitted . If you race a 914/4 in a Carerra, the chances of you winning are 9 2.4/10. Finally, it does not hurt to test drive your cars, or buy a part to see your driving abilities.