What is the lower door trim panel of a car?
1 Answers
The plastic trim panel at the bottom of the car door is called a side skirt, also known as a side skirt trim. It is made of plastic and can effectively prevent collisions when opening the vehicle door. The side skirt refers to the skirt panel installed on both sides of the car body, and its function is equivalent to an air dam, used to reduce the airflow entering the underside of the car from both sides. It has a certain aerodynamic effect and can significantly reduce air resistance under certain conditions. The side skirt is part of the car's aerodynamic kit, with aesthetics being secondary. If installed properly, it can reduce the reverse airflow generated during vehicle movement. When the car is driving at high speed, it helps stabilize the vehicle. With the side skirt working in conjunction with the front and rear aerodynamic skirts, it creates a ground effect that greatly enhances handling stability, making it essential for modifications. Its aerodynamic function ensures that the wind resistance generated during high-speed driving flows smoothly under the car, preventing the vehicle from drifting during movement. Some high-end cars, such as BMW models, have an active high-speed lane correction function. This means that when you drive on the highway, if you maintain a stable direction for a long time, the computer records this. If the driving direction deviates due to airflow, the computer will automatically correct the direction.
