-When having trouble winning circuit, sprint, or lap knockout races, take off all of your engine performance mods. Note: This works for every car and is most useful for the Nissan Skyline. You do not need to take off the handling mods.
-When having trouble winning underground mode races 80 to 90, trade in your car for the Mazda Mx5. Use all level 3 performance upgrades except for the last three. This version of the Mazda has great acceleration, a good top speed, and brilliant handling. You can customize it in any way desired.