Speed your car on smoldering, screeching tires through various obstacle courses. Certain bumps will cost you valuable time, and some obstacles might even mean an immediate end to your wild journey. With luck, you'll find some useful extras in the parking lot, which will allow you extra time or bestow you with a big speed bonus. This, however, provides the additional challenge of not losing control when going at your faster speed, so that you end up banging into more obstacles or even flying off the track completely.
Instructions are in game.