Autum Ring- Cut the corners and make sharp turns with your brake. 

Deep Forest- Try not ride on the grass or hit the walls. This will couse your car to jump all over the place and end in a spin out. Ease off the gas if your car becomes unstable.

Grand Valley- This is a somewhat long course but you should take must of the corners with out applying to much brake.

Grand Valley East- The shortened version is fairly easy but approach the corners with a little brake because most you cant see until your in the dirt.

Grindelwald- Take sharp turns and use the walls to your advantage. This is a good course for spinning out. Also like in Deepforest try not to hit the walls with grass around them. 

Laguna Seca- You should be cautious entering corners, they may be misleading. Take the corkscrew buy easing off the gas and brake before the hill so you don't fly and loose valuable braking time.

Motor Sports Land- A hidden track that can only be played with a gameshark.

Rome Circuit- Fast but should be careful around the corners because they are very sharp.

Rome Night- Use your map to tell when the sharp turns are coming and when there not. The first few you should take a full speed.

Seattle Circuit- Don't let the walls discourage you. This is fast but should be careful about applying to much gas around the corner.

Seattle Short- This course is a very windy with lots of sharp and abrupt turns.

Tahiti Road- Very easy and short. This is a beginner course. Cut a lot of the corners and drive on the grass if you need to.

Trial Mountain- Use lots of brake and after the first lap use the brake at the beginning if your going fast or you'll ride right off the track. Be very careful of gaining to much speed and then entering a corner. When taking a corner pump the accelerator the not spin out on rear wheel drive cars.