This is a great road racing game that will challenge your skills. You will need to practice and qualify well if you want to finish well enough to move on to the next track.

Cursor keys or WASD to control car.
X or N to use the nitro boost, when available.

When you first start a new track:
First study the track map while you watch the cars run the track in the background.
Run a Practice session. Try to understand the flow of the track before going to qualifying.
You get to customize the paint colors on your car and helmet if you can qualify first for a race.
You need to finish third or better in a race in order to unlock the next track.
Be careful how you upgrade your car, it can be critical.