Chris Harris gets the Ferrari LaFerrari, Porsche 918 Spyder and McLaren P1 together at the Portimao circuit in Portugal. Which is the quickest around the 4.7km track? Harris provides the answer, although only tenths of seconds separate the three supercars. Towards the end of the video Harris is joined on and off the track by race driver Marino Franchitti and TV presenter and former Formula One driver Tiff Needell. The video is long but it’s worth watching.