Is it illegal to install curtains in a private car?

[GiannaLynn]

Installing curtains in a private car is not illegal, provided that it does not obstruct the driver's view. Car curtains help with heat insulation, shading, and protecting privacy inside the vehicle. Functions of car curtains: Heat insulation; UV protection; Privacy protection. Vehicle modifications that do not require reporting: Installation of front and rear anti-collision devices on small and micro passenger vehicles. Installation of windshields, water tanks, toolboxes, spare tire racks, etc. on cargo vehicles. Adding interior decorations to vehicles. Installing car curtains falls under the third provision of Article 16 of the "Motor Vehicle Registration Regulations," which allows for interior decorations as long as they do not affect safe driving. Types of car curtains: Built-in curtains: Only high-end vehicles come with factory-installed curtains, typically limited to the rear side windows. These curtains can be easily activated using idle buttons on the panel, achieving an OEM effect, though they are more expensive than external curtains. External curtains: As the name suggests, the motor is exposed but becomes hidden behind the curtain fabric once installed.