James May discovers how the car became an everyday part of ordinary people's lives. He explores the weird world of the microcar and revisits some infamous examples.

James May downsizes to explore the weird world of the microcar.

He discovers how austerity and fears of congestion led to European tragicomic disasters in the shape of Britain's infamous three-wheelers, French deathtraps and German absurdities. James takes to the battlefield to settle one of the greatest rivalries in car history and travels to Japan for an urban race between a state-of-the-art micro sports car and the best-selling vehicle in history.