Tesla CEO, Elon Musk, recently announced that the car manufacturer will produce self-driving cars within three years. Nissan has announced that it will have a self-driving car available by 2020, Google has said it will do so by 2018. Over the past decade, the conversation around self-driving cars has evolved from futuristic police chase sequences in Minority Report to figuring out which auto manufacturer will be first to launch a commercially viable self-driving vehicle. Daimler AG, maker of Mercedes Benz, recently announced that an S-class sedan had completed a 62-mile journey in the streets of Germany without a driver. Audi’s self-driving car successfully navigated 156 turns of the 12-mile Hill Climb course in Colorado’s Pikes Peak. Car manufacturers see self-driving cars as a way to eliminate road deaths caused by human error, reduce traffic, and free up time spent commuting – but how do these vehicles work?