Accident car refers to the accident that mechanical performance and economic value are lost due to unnatural wear and tear. "Accident vehicle" generally refers to vehicles with structural damage. At the same time, soaking cars and burning cars also belong to the category of "special accident cars". Appraisal methods of accident vehicles include appearance appraisal, lamp appraisal, insurance inspection and interior inspection.

Meet any one of them, it is an accident vehicle: a vehicle that has been damaged by the engine compartment and cockpit. The rear fender of the vehicle body hit and damaged more than one third of the vehicles. Vehicles with welded, cut, shaped and deformed longitudinal beams. The shock absorber seat has welded, cut, shaped and deformed vehicles. ABC lists vehicles that are welded, cut, formed and deformed. A vehicle that causes a car to eject safely due to an impact. Other non-removable parts are vehicles that have undergone a lot of welding, cutting, shaping and deformation. The car body is soaked in water for more than half of the car body, or the water enters the cockpit. Vehicles whose bodies have been burned by fire for more than 0.5 square meters, and there are still potential safety hazards after repair.