In fact, the bumper strip on the front of the old Ming Rui car is in line with the bumper strip on the door. But there is no bumper on the front of the new Ming Rui, so the bumper on the door is rather abrupt.

The significance of the front and rear anti-collision beams is the device that the vehicle bears the impact force for the first time. There is a very important concept of passive safety of car body, that is, the whole car body is stressed a little. To put it bluntly, the car body was hit somewhere. If only this part is allowed to bear the load, the protection effect will be poor. If the whole skeleton structure bears the stress at a certain point, the stress intensity at a certain point can be reduced to the maximum extent, especially the front and rear anti-collision steel beams play an obvious role here.

In high-speed offset collision, the impact beam can effectively transfer the impact force from the left side (or right side) of the car body to the right side (or left side), so that the whole car body can absorb the impact energy as much as possible. In the case of low-speed collision (generally below 15km/h), the anti-collision beam can avoid the damage of the impact force to the front and rear longitudinal beams of the car body and reduce the maintenance cost.

In fact, the passive safety of the car body involves the overall structure of the car body, and the style, thickness and material of the anti-collision beam will affect its ultimate strength. The strength of the anti-collision beam should not be too large or too small, and it should be matched with the whole vehicle. Only having a perfect body structure is the safest. Therefore, it is difficult to judge the safety of the whole vehicle simply from the style and thickness of the collision beam.