August "Bubi" Momberger (26 June 1905 – 22 December 1969)[1] was a German racing driver and engineer, who competed in Grand Prix motor racing events for various manufacturers between 1926 and 1934. During the 1934 Grand Prix season – the first season of the infamous Silver Arrows period of German dominance of Grand Prix racing, that would last until the outbreak of WWII – he drove for the Auto Union Rennabteilung, and was the first driver of a Silver Arrows car to take a podium finish in a major race. During the season he took a further second-placed finish, and posted two fastest laps, but worsening arthritis and a deteriorating relationship with the Auto Union team manager forced him into retirement before the end of the year. Following his retirement from racing, Momberger returned to his engineering training and rose steadily through the ranks of the German automobile industry, eventually becoming technical director of the Borgward company's Goliath division in Bremen.