Mercedes-Benz Museum: The Road Cars Published on November 27, 2017 in Galleries by Michel Deslauriers Photo: Michel Deslauriers 1935 Mercedes-Benz 770 Grand Mercedes Pullman Limousine. Owned by Japanese Emperor Hirohito. Occupants were protected by steel armour in the roof and doors as well as special glazing on the windows. Engine: eight cylinder Displacement: 7655 cc Output: 150 hp (110 kW) Top speed: 150 km/h