Chief among road rules on Germany’s autobahn is: Move over for faster traffic. And there are few production cars on planet Earth faster than a Koenigsegg Agera R. Just 18 of the Swedish flyers were built between 2011-2014, each one made mostly of carbon fibre and aluminium and running a twin-turbo 5.0-litre V8. The company claimed it could deliver around 850kW on special fuel. The Agera R became the fastest car to sprint from a standing start to 300km/h to a dead stop – in 21.19 seconds. Another Koenigsegg later beat that record. In this video from GTBoard.com, the Agera R sits in the fast lane on the autobahn and hits what its driver later said was 320km/h.