An automotive sunroof is a movable panel that is operable to uncover a window in an automobile roof, which allows light and/or fresh air to enter the passenger compartment. A moonroof has a glass panel that is transparent and usually tinted. Sunroofs are either manually operated or motor driven, and are available in many shapes, sizes and styles. While the term sunroof is now used generically to describe any glass panel in the roof, the term "moonroof" was historically used to describe stationary glass panes rigidly mounted in the roof panel over the passenger compartment. Previous terms include Sunshine Roof, Sliding Head and Sliding Roof.