It’s been awhile since we’ve posted any rockin’ spy video from das Ring. So, to satiate everyone’s desire for sneaky footage of sexy metal, I give you what appears to be a Porsche 911 GT3 RS prototype. The company has been tweaking on the already sinister GT3 to create an even more Fiendish model. The changes include even less weight through an increased use of carbon fiber, but the 3.8-liter flat-six should remain largely unchanged. That means 435 horsepower will still be on tap. Watching Listening to this thing get slung around Nurburgring is perfect. Just perfect. Hop the jump for a look. [Source: Carscoop]