Mercedes-Benz Museum: The Road Cars Published on November 27, 2017 in Galleries by Michel Deslauriers Photo: Michel Deslauriers 1899 Benz Dos-à-Dos. Named after the seating configuration, in which passengers sat back to back. Engine: horizontally opposed two cylinder Displacement: 1728 cc Output: 5 hp (3.7 kW) Top speed: 35 km/h