A race is not only a test of toughness, but a test of how fit you are since you need to be fit to be able to last in a race. If you are not fir enough then you will tire easily, thus, limiting your chances of winning in the race. Even if you have the fastest car, that won't help you much if you are not fit enough to drive the car.
There are six cars in this game and the idea here is like any car race game that you have tried before. You need to get to the third spot to be able to unlock the next level. You would also earn more if you got a good position in the race. You can use the money to buy some upgrades for your car.