Car windows are transparent panels made of glass or plastic that allow passengers to see outside while providing protection from the elements. They are designed to be durable and can be opened or closed, depending on the vehicle's design. Most cars have side windows, a front windshield, and a rear window, each serving a specific purpose in visibility and safety. The front windshield is crucial for the driver's view and is often made with laminated glass to prevent shattering. Side windows can be manually or electronically operated, while the rear window typically includes a defroster to improve visibility in cold weather. Proper maintenance of car windows is essential for safety and comfort.