Why do many cars have red cloth on their rearview mirrors?

Wearing red stripes on new cars is mainly for good luck. Now, after buying a new car, many people will tie red strips of cloth to the rearview mirror and wheel hub, and some even tie them to the exhaust pipe, which is auspicious.

However, it is recommended not to tie red strips on new cars to avoid unnecessary trouble. Tie a red cloth strip on the rearview mirror, which is easy to be adsorbed on the rearview mirror during the driving process and affects the driving sight. In rainy days, red cloth strips may be firmly stuck to the reflector by rain, which will also block the line of sight and cause safety hazards. If the red stripe fades, the place where the stripe is tied and the car body will be stained with red, which will be obvious especially in light-colored cars such as white. It will be very difficult to clean up, which may lead to the polishing of the paint surface and increase the cost of car maintenance. The wheel hub is tied with red cloth strips, and the tire brake disc generates a lot of heat during the high-speed vehicle, which is easy to cause the red cloth strips to burn. Tie the red cloth strip to the exhaust pipe, which is more likely to cause fire hazards.