Porsche 911 GT3 RS 4.0 & Carrera GT to the Scottish Highlands

T1, E1: Jethro Bovingdon tests a Porsche 911 GT3 RS 4.0 on the epic, desolate roads of the Scottish Highlands. On a rare sunny day, he's also joined by an iconic Carrera GT supercar to help him determine whether the 911 is the greatest Porsche of all time.