With the brand new 2012 Porsche 911 Carrera and Carrera S coupes officially revealed, the German company’s engineers are now free move around with undisguised pre-production prototypes without worrying about spy photographers and the casual petrol-heads taking pictures of the cars.

This blacked out 991 was snagged filling up at a gas station in Germany. The test car was stripped out of any Porsche badges and logos, but the quad tail pipes reveal that it’s the more powerful Carrera S (the standard Carrera has twin tail pipes), which is motivated by a 400-horsepower 3.8-liter flat-six.

We’ll bring you more live photos of the new 911 from next week’s 64th International Motor Show (IAA) in Frankfurt.

Thanks to Guy for the images!

PHOTO GALLERY