Accident car is a car that has had a traffic accident. There are some problems, so it is best not to buy it. Details are as follows: 1. If the front and rear side rails are damaged, you can't buy them. The front and rear longitudinal beams can effectively absorb the energy generated by impact, thus playing a certain protective role for the car body. However, after being damaged, even if it is repaired, the safety performance of the vehicle will be greatly reduced; 2. An accident car with damaged A, B and C columns can't be bought, because the A, B and C columns of a car are like human bones and play a vital role in the safety performance of the car. When the vehicle collides, it can effectively reduce the deformation of the car, thus protecting the safety of passengers in the car. The deformed A, B and C columns can hardly protect the carriage. 3. For an accident car with damaged suspension system, the suspension assembly is damaged after collision, but it cannot be restored after repair, which may lead to different adhesion of the four tires. When the vehicle brakes or turns, it is easy to slip, which is very dangerous.