<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (May 2010) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (May 2010) (Learn how and when to remove this template message) </Td> </Tr> <P> An automotive sunroof is a movable (typically glass) panel that is operable to uncover an opening in an automobile roof, which allows light and / or fresh air to enter the passenger compartment . 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 . </P> <P> Sunroofs, by historical definition are opaque . The first car company to offer a sunroof as a standard option was the Nash Motor Company as an option on some of its 1937 models . Today, most factory sliding sunroof options feature a glass panel and are sometimes marketed as moonroofs, a term introduced in 1973 by John Atkinson, a marketing manager at Ford for the Lincoln Continental Mark IV . For the first year, Ford sent out its Mark IVs to American Sunroof Company for offline installation . </P>

What is the purpose of sunroof in car
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