A one-off factory competition machine purpose-built for the most ferocious competition of its time, the Semmering Hill Climb The 1908 and 1909 Semmering winner, driven by Otto Salzer Achieved 3rd at the Champion du Monde of October 1909, driven by Camille Jenatzy Believed-unique 17.3-liter engine, installed by Mercedes in 1909 Known, verified identity and history from new; incredible originality Acquired for the Indianapolis Motor Speedway Museum from renowned sportsman David Gray Jr.

in 1964 The ultimate iteration of the original Mercedes design; one of the most significant pre-war competition automobiles in the world