Porsche 911 GT2 RS topples Road America lap record - video

We know the Porsche 911 GT2 RS is fast. It set a Nurburgring lap record in 2017, lapping the Green Hell in just 6:47.3 with Lars Kern behind the wheel. Lamborghini has since taken it back, but that's besides the point... Now, it's the quickest production car ever to lap Road America. It's a fast track, with just 14 corners in its 6.5km layout, allowing driver David Donohue to average 174km/h throughout the lap. That's fast.