How electric, self-driving cars and ride-hailing will transform the car industry

Welcome to the world of AutoTech. The switch to electric is not the only aspect reshaping the automobile business. Self-driving cars have done over 2 million miles of test-driving, and there are already robot taxis in some parts of the world. Daniel Yergin explores why the era of petrol cars is coming to an end, and how this industry will likely become one of the biggest sources of competition between the US and China.