2018 Porsche 911 GT2 RS: Alpha Dog Published on May 21, 2018 in First Drives by Gabriel Gélinas Photo: Gabriel Gélinas 2018 Porsche 911 GT2 RS - The obsession with aerodynamics is clearly evident on the GT2 RS as it is on full-bore racing cars, with downforce rated at 312 kilograms in road-going trim and 416 kg in race-track trim.