Guy builds his own electric motorbike in a factory in Chongqing, the fastest growing city in the world, before visiting the world's biggest public toilet and heading along the Yangtze towards Shanghai.
Guy explores Beijing, buying a rudimentary Flying Pigeon bicycle, finding out how China's super-rich live, and racing the 'Nigel Mansell of rickshaws' around the tight and twisty backstreets.
