By now, we all know the Porsche 918 Spyder. At the IAA, we saw the version which is ready for production. Last weekend brought us a 918 Spyder in Norway, at the Rudskogen Motorfestval 2013. The car which did a lap around the Nordschleife in six minutes and 57 seconds was shown here. Remarkably this 918 Spyder has got exhaust pipes at the side of the car. Is this an early prototype or is it an option or modification for the car?
