How to Judge the Distance by the Rearview Mirror?

[McMaximus]

The following are the methods to judge the distance by the rearview mirror: 1. The larger the size of the following vehicle in the rearview mirror, the closer the distance is; the smaller the size, the farther the distance is. If the following vehicle almost occupies the entire rearview mirror, the distance is approximately 3m; 2. If the following vehicle occupies about 2/3 of the rearview mirror, the distance is approximately 5m; 3. If the following vehicle occupies about 1/2 of the rearview mirror, the distance is approximately 9m; 4. If the following vehicle occupies about 1/3 of the rearview mirror, the distance is approximately 12m. Extended information: There are three 'rear eyes' in the car, which refer to the two side rearview mirrors and the interior rearview mirror. For the exterior rearview mirrors, the horizontal dividing line between the sky and the ground should be in the upper half of the mirror, meaning that two-thirds of the ground and one-third of the sky should be visible in the exterior rearview mirror, ensuring that most road conditions are clearly visible.