Cars manufacturers in accordance with the automobile production plant to provide a blueprint for a real car, scaled down, to make a similar "mud-type" template model, template model should be repeated scrutiny, comparison, Seiko secret agents seek realistic. Pattern recognition model are car factory, the car models model model makers will be required under parts drawings drawn to scale and the development of the corresponding parts of the mold. With the mold, after casting, forging, stamping and other processes to produce the parts and then some machining, welding, painting, assembly can be entered manually. This model of a car came into being.