Teach you to see if there is a big accident in the car from these places.
Seen from the front, the front bumper of the car is in front, which will deform and squeeze the bumper when it hits, and then the energy of the subsequent water pressure tank will squeeze the engine. Generally speaking, you can see the fan and water tank of the car when you start the engine. If there are signs of replacement, then continue to look at the girders on both sides of the water tank.
The cross beam extends out to fix the anti-collision beam. If you hit the front, it will be deformed, and even if it is repaired by sheet metal, it will not return to a flat appearance, because the paper will be uneven after bending. In terms of impact, the front impact beam bears a lot of force.
There is also watching the rear impact, and the rear is the trunk. When the trunk is opened, you can see where the spare tire is. That place can't be replaced but rebuilt, so it's easier to see whether there is an accident here, and some cars don't have a rear bumper, so the rear part of the car body is fragile.
Then watch the door from the side. The door can be replaced, but as can be seen from the hinge of the door, the bolts of the hinge are generally painted. If it will leave a mark, then you have to figure out what will happen before you open the door.
There is also listening to the sound, knocking on the metal surface of different parts of the car body to see if the sound is consistent. If there is putty to repair it, the sound will be dull. This is not suitable for beginners. Beginners can buy a paint detector, with which they can intuitively see whether the car body is filled with putty.
Besides, the car itself can't be scraped. Generally speaking, as long as the girder is not damaged, the problem is not big, and it is normal to touch up the paint a little. Therefore, buying a car depends on the internal problems rather than the surface.