We've been showing you spy photos of a prototype 2013 Lincoln MKZ sporting a very large retractable roof for months now, and today, the automaker has pulled back the curtain on this very unique feature.

While giant sunroofs are nothing new, the retractable panoramic roof that will be available for the 2013 Lincoln MKZ covers 15.2 square feet, which Lincoln says makes it one of the largest retractable glass roof panels in a production sedan. We can't think of any larger than that, though manufacturers usually don't supply the square footage of their sunroofs. Bonus points, then, for whoever can name a larger one in the comments.

Lincoln says it takes two motors just ten seconds to either open or close the roof, which rides along parallel rails located on the outer edges of the roof and along each side of the rear window. When fully retracted, Lincoln says the opening is about two-feet deep and two and a half feet wide.

That's all we know until the production 2013 Lincoln MKZ debuts next week at the New York Auto Show, but we're fairly certain this special roof will be optional equipment and likely pricey. We'd also be surprised if the automaker's marketing team didn't give it a more catchy name like "PanoScreen" or "MyLincoln See."

Scroll down to see video of the MKZ's retractable panoramic roof in action.