Auto Trade City generally has many 4S stores, which are a collection of 4S stores. Auto Trade City also has a second-hand car market. 4S stores are dealers selling directly from manufacturers. The manager of a 4S store can be an individual or a staff member of an automobile trade mall. They have the ability to open a 4S store, but they may not necessarily have the ability to open an automobile mall. Automobile trade cities or 4S stores are generally located in urban areas, and secondary dealers are mostly concentrated in counties or rural areas. Therefore, the "XX Automobile Trade City" seen in county towns is just a name and belongs to secondary dealers. Of course, it is not ruled out that some economically developed counties and districts also have 4S stores. This is determined by the level of economic development of a region.