Porsche Cayenne Turbo S 2013 review http://bit.ly/YypJzQ<br />Subscribe to evo TV for more videos: http://bit.ly/WpFurP<br />Register for evo's weekly newsletter: http://bit.ly/YwSED0<br /><br />Richard Meaden tests two of the most unlikely rivals with an almost identical power-to-weight ratio, the new Porsche Cayenne Turbo S and Caterham Supersport, on track at Bedford Autodrome.
