Mark Webber took the Porsche 919 around the sights of London this morning, with the new Panamera 4 E-Hybrid trailing behind before its world launch at the .brWelcome to Horsepower Hunters! This is the channel dedicated solely to finding and filming the most powerful machines this planet has to offer. Subscribe now .brWe were lucky to see Mark Webber, the famous racing driver, driving the Le Mans-winning Porsche 919 Hybrid on the road, whilst filming for a Panamera .brIn one of the most vibrant cities in the world, Porsche took innovation bred on the race track and brought it to the road. A perfect setting to put our intelligent .