Children pick coloring books for a number of reasons because of their interests, topic, or just the pictures. With the age of TV, and the movies a child can see what a car can do; such as flying off a building in stunts, go cart racing in a derby, to race car driving. They may like the style of car, there speed, even the looks of the car. A coloring book can show them pictures of the different types of cars, engines, rims, logos, numbers to name a few