Car bodies are the outer shell of a vehicle, designed to protect passengers and components inside. They come in various shapes and sizes, including sedans, SUVs, and trucks, each serving different purposes. The materials used for car bodies can include steel, aluminum, and plastic, which contribute to the vehicle's weight, safety, and fuel efficiency. The design of a car body also affects aerodynamics, influencing how smoothly the vehicle moves through the air. Features like windows, doors, and hoods are integrated into the body, providing functionality and style. Overall, the car body plays a crucial role in both performance and aesthetics.