1. The used car in Dazhou has passed the warranty period of the manufacturer. With the aging of various parts, the problems of the car began to increase. The use cost of the owner is much higher than that of the new car, and the use value is lower than the residual value of the car body.

2. Chongqing's second-hand cars are developing with the Internet. Many car owners also sell used cars online. When facing individual buyers, I found that many of them are not as good as used car dealers.