Wheel arch extensions are modifications added to the wheel wells of vehicles to enhance their appearance and functionality. They provide extra coverage for wider tires, preventing debris from being thrown onto the body of the car and improving overall aerodynamics. These extensions can be made from various materials, such as plastic or fiberglass, and come in different styles to match the vehicle's design. In addition to aesthetic benefits, wheel arch extensions can also help comply with local regulations regarding tire coverage, ensuring that vehicles remain roadworthy and safe.