Car door panels are typically constructed of plastic. Plastic panels are lightweight and corrosion-resistant, and they can be molded into various shapes to design. Door panels are typically made from a durable, impact-resistant plastic. Common materials include ABS plastic, polypropylene, and nylon. These plastics are strong, lightweight, and UV-resistant, making them ideal for use on the exterior of cars.
Fabric
In some vehicles, especially luxury models, the door panels may be covered with fabric. The fabric can be matched to the interior of the car, adding a touch of luxury.
Leather
In some high-end vehicles, leather may be used to cover the door panels. Leather offers a luxurious look and feel, and it is also durable.
Metal
In some cases, such as in classic cars, metal may be used for door panels. Metal panels are solid and durable, but they are heavier than plastic panels and can be more difficult to mold into various shapes.