Documentary examining Germany's economic power and the automobile industry at the heart of it. Across the world, the badges of Volkswagen, Audi, BMW and Mercedes inspire immediate awe. Even in Britain, where memories of Second World War run deep, we can't resist the appeal of a German car. By contrast, our own industry is a shadow of its former self. Historian Dominic Sandbrook asks what it is we got wrong, and what the Germans got so right.