Where does the second-hand car market come from?

In the ordinary second-hand car market, most cars are collected from all over the country, and those who do the second-hand car business generally run around and collect them wherever they hear that there are good cars. However, some used car markets have special sources. Take Runhua used car market that I am familiar with as an example. More than half of the used cars here come from replacement, mainly because Runhua is an integrated automobile group, which has both new car business and used car business. Local consumers also trust Runhua very much, so they will directly choose to replace vehicles here, and Runhua's used car replacement vehicles account for more than half. The advantages are also obvious. On the one hand, cars are in good condition, and there are almost no accident cars and burning cars. On the other hand, the vehicle source is clean and there are no hidden dangers in the transfer procedures.