All Tracks and Cars:
Enter you name as RACES THE BEST in championship mode. At the next screen, press Left, Right, Right, Left, Down, Up.
Get to over 300 mph with gt1/gt2 cars:
Go to options and to game settings. Go to speedometer with the class A ellipse stallion (speedcraft) and press C-Right. Now you can get to over 300 mph. NOTE: only some works in GT2 cars but the cheat works on most of the GT1 cars.
(supplied by: ftmldn)
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