A sports car is not something that you see on the road regularly simple because these cars are special and they are used on the race. Anyway, you would have a hard time controlling a sports car, so it is not advisable for a common driver. And since, the car is exposed to wear and tear while it is used in the race, you can expect that it would get dirty often and needs some repair most of the time.
This game is a solution to that problem as it focuses on that part. The game is played via mouse and the idea here is to clean the car. Afterwards you need to repair it to make it good as new.