"Top Gear" star James May knows about cars. In this three-part series, he explores the history of that transportation method, beginning with how people first got their vehicles. His findings show that design brilliance, abject failure, war and fraud shaped early days of the industry in places like Germany and Britain. The host spotlights microcars, automotive rivalries, and the development of modern machines as he reveals "the ultimate people's car", his choice for the greatest vehicle in history.