The Koenigsegg Agera RS is officially the world’s fastest road car. A new top speed record was set on Saturday by Koenigsegg factory driver Niklas Lilja on highway near Las Vegas. The Agera RS recorded an average speed of 277.9 mph (444.6 km/h) on an 11 mile stretched of highway which was shut down to facilitate … Continue reading Koenigsegg Agera RS is the world’s fastest road car