The first stage is 1990-1996, the beginning of the automotive aftermarket. Service object: Bus; The second stage is from 1997 to 2006. In the high-speed development stage of the automobile after-market, the service objects are mainly business vehicles, 15% private cars; < br />.The third stage is the shuffling stage of the automobile aftermarket from 2007 to 2010. Service object: private car, 50% official car, 50%; The fourth stage is after 2011, after the slow development of the automobile market, the service objects are mainly private cars. There are 2-3 regional leading stores in each region. Brand fast repair and fast guarantee stores are parallel with 4S station...