Which part does the fender refer to?

[VanLily]

The fender refers to the protective panel located on the outer side of the wheel, behind the front bumper, under the hood, and above the front steering wheel. Also known as a wing panel, fenders are categorized into front fenders and rear fenders based on their installation positions. They serve as a type of cover for motor vehicles and non-motor vehicles, designed to reduce the drag coefficient according to fluid dynamics, ensuring smoother vehicle operation. Since the front wheels have steering functionality, it is essential to ensure the maximum space required for front wheel rotation. Therefore, designers use "wheel travel diagrams" based on the selected tire model and size to verify the fender's design dimensions. The rear fender does not face issues related to wheel rotation interference, but for aerodynamic considerations, it is slightly arched and protrudes outward.