Various Gameplay Hints
The drifting mechanic has numerous levels of boost offered, based upon how long you continue riding. Wander around the entire thing for a huge injection of rate if there's a long edge. Discover a character you such as, and stick with him. He'll get experience as he races, and you'll open rewards for him for each level advanced. If you wish to open every track rapidly, stick to the Easy difficulty and roll with World Trip, then return and polish off the more difficult obstacles.
How to drive on the side of the road
When you are driving on a road with no walls sometimes you will drive on the side of it.