A few months back, when it unveiled the 992-generation 911, Porsche also showcased a winged model in its Super Bowl add. The blue-painted coupe looked a lot like the 911 GT3, features the same big wing atop the rear deck. But Porsche has yet to reveal that car. What's more, it seems that it is actually preparing the release of a different type of GT model. A new teaser just surfaced on Bring a Trailer, which hosts a bidding auction through which the winner will have the opportunity to secure a build slot for the upcoming model. The teaser photo shows a Porsche under a cover, and the details suggest that it's not a GT3 or a GT2. But what could it be?