Cars and TransportationSpeed demon: Porsche 911 GT3 05:17This browser does not support the video element.Cars and Transportation06/20/2017June 20, 2017The 911 GT3 is a dream machine. Porsche first introduced the sports car in 1999. The latest edition has a new look, new engine and new technology. Its aerodynamics package increases downforce by some 20 percent - vital in a car that can go 318 km/h!Copy linkAdvertisement