Some people define their times. Juan Manuel Fangio did. The symbol of a golden age of motorracing, through the fifties he was king of Formula 1. Many drivers think he is the greatest ever. Some designs are an utter revolution. Like the Mercedes-Benz 300 SLR which Fangio drove. Lighter than light, as curvaceous as an Oscar Niemeyer building, it pushed performance and design to new heights.