text: Solar sunroofs are made of glass, with an inlaid photovoltaic solar panel that makes the glass totally opaque. They operate the same as conventional factory-fitted glass moonroofs (tilting and retracting), but when closed the solar panel provides electricity to power the interior ventilation fans, for cooling the car interior on hot days when the car is standing outside in the sunlight. These are available as a factory option on the 2010 Prius, recent Audi cars, Renault Zoé, and also were available on some versions of the Mazda Millenia and Mazda 929.
  Electric vs. electronic Motorized power roof systems may be operated by a simple push-and-hold switch, or may include an electronic control module (ECM) to provide single-touch express opening, express closing, or auto-closing on ignition off.
  Moonroof is a transparent, usually glass or Plexiglas, sunroof that lets light in while closed. Examples include the Mk1 Ford Fiesta from 1976, the Mk3 Ford Escort from 1980, the Acura ILX, and Pontiac G6. The earliest example, although not called moonroof at the time, was the 1933 Hillman Aero Minx which could be fitted with a sliding roof panel including inset glass. An early use of a large-panel transparent roof section was the 1954 Ford Skyliner and Mercury Sun Valley models which borrowed in-part from the full panoramic roof of the Lincoln XL-500 concept car as well as the X-100. A fixed moonroof exclusively for rear seat passengers was a prominent feature of the Aston Martin Lagonda from series 2, to 4 which was launched in 1976.