Tinted windows in China: Navigating regulations and customs
Most cars in China have tinted windows. In the Far East, however, an open space is left near the mirror for several reasons.
Each country has its customs. Residents of China do not usually significantly modify the exterior of cars, mainly due to strict regulations. They focus on personalizing the interior and tinting the windows, though they do it in their way.
A Reddit user, ReeiTheModerator, explained the "trimmed" tinting issue in more detail: "Cutouts are introduced for legal reasons." After registering the car, you can fully tint the window, but it requires a lot of "paperwork," there is still a chance that such a solution won't pass the annual inspection. So, the solution is to cut out a piece near the mirror and keep driving the car.
Additionally, another user (who decided not to go with such tinting) noted that many parking lots in China are underground, and maneuvering with a darkened window is not the easiest – unless you open it completely.
It's worth noting that China has no tint limit for front windows.
