Side skirts
![](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Tuned_Toyota_Mark_II.jpg/220px-Tuned_Toyota_Mark_II.jpg)
A tuned Toyota Mark II with side skirts and front spoiler painted in body color
In side sills is the sill beneath the driver and front passenger door of a car-mounted plastic rails.
description
The side skirts are firmly screwed to the load-bearing sill and are used in racing to improve the flow around a racing car. In interaction with spoilers , front and rear wings as well as other add-on parts, the road holding of a racing car is improved, since at higher speeds a suction effect occurs, i.e. the lift is reduced. In privately used vehicles, side skirts are usually only used to beautify the body.
See also
Side skirts are not to be confused with running boards or steps , which are also attached below the doors.