2014 Porsche 911 Racers Compared: 991 RSR vs 991 GT3 Cup vs 997 GT3 R
The latest 2014 Porsche 911 RSR looks quite different from its most recent relatives in the 911 racing side of the Porsche family tree. This roundup shows three of the most hardcore 911 racers that will contest the 2014 seasons across various series around the world. Yes, the rules from all these racing groups will be very different in how much enhancement is allowed: from the road-car side of the spectrum in the 991 GT3 Cup, all the way to the pure prototype RSR model. The RSR is a seriously hardcore racing machine that will howl its boxer six bellow …