Le Mans 24H winner Ho-Pin Tung talks us through the colossal trial of driving the Range Rover Sport Plug-in Hybrid in the ?Dragon Challenge? up the Tianmen Mountain in China. In his own words ?the most challenging thing I?ll experience in my life?. Watch the Dragon Challenge playlist here: http://bit.ly/2BTH3L1 Visit http://bit.ly/2H10r84 and explore the Range Rover Sport.