The 12/55 hp model of 1926 – together with the 8/38 hp two-liter car – was the first passenger car model of the newly formed Daimler-Benz AG to go to market under the Mercedes-Benz brand name. The spacious, well-appointed body made the Mannheim-built 12/55 hp the ideal tourer. As satisfied customers reported, it even was a great car for traveling through the Alps.

• Cylinders 6
• Displacement 191 cu in
• Output 55 hp (40 kW)
• at engine speed 3200/min
• Top speed 62 mph
• Production period 1926-1928
• Units produced 3876