The first thing you must do before beginning the game is to select which vehicle you want to use for the race. You will have three different choices, and after you select your car you can get started. The races in this game are relatively short, but you are obviously going fast and have multiple obstacles to avoid, including other cars that are in the road. You will be up against one other car, and your main goal is to get to the finish line before they do.
With each new race you win, you will be able to upgrade your vehicle with regards to its speed and handling. You will soon find that this is extremely helpful in future races, because you will easily gain the upper hand with your modified vehicle. At the end of each race you will be able to see what your exact time was, so you can try and beat it next time around.
As you complete the races, you will be able to improve either your speed or handling. Depending on how well you handle the controls, you might want to select speed if you are fairly good at keeping your car going straight down the road. If you find that you do in fact have some troubles with weaving all over the place, then handling would be a good option. Remember that speed doesn not always win the race. Sometimes it is all about how you handle your vehicle and how well you can manage it when it counts the most.
Directions
Gas: Up
Steer Vehicle: Left/Right
Brake/Reverse: Down