Mercedes-Benz Cabriolet Type 300S from 1955, six cylinders, 2996 cc, 160 HP, 170 km/h
The Mercedes-Benz W188 was a two-door luxury sports tourer produced by Mercedes-Benz between 1951 and 1958. The company’s most expensive and exclusive automobiles, the elegant, hand-built 300 S (1951-1954) and its successor 300 Sc (1955-1958) were the pinnacle of the Mercedes line of their era.
The pair’s conservative styling belied their technological advances, sharing numerous design innovations and mechanical components with the iconic Mercedes-Benz 300 SL “Gullwing”, including engine, suspension, and chassis.
From July 1952 to August 1955, a total of 216 Coupés, 203 Cabriolet As, and 141 Roadsters were produced.
300 S
The hand-built two-door 300 S (W188) was Mercedes-Benz’s top-end vehicle on its introduction at the Paris Salon in October 1951. It was available as a 2-seat roadster, 2+2 coupé, and cabriolet (with landau bars, officially Cabriolet A).
Although mechanically similar to the much larger contemporary four-door 300 (W186), the additional craftsmanship, visual elegance, and 50% higher price tag elevated the W188 to the apex of its era’s luxury cars.
The 300 S was fitted with a high-performance version of the W186’s 3.0 L (2996 cc/182 in³) overhead cam, aluminum head M186 straight-6, the M188. Designed to give reliable service under prolonged hard use, the engine featured deep water jackets, an innovative diagonal head-to-block joint that allowed for oversized intake and exhaust valves, thermostatically controlled oil cooling, copper-lead bearings, and a hardened crankshaft. Triple Solex carburettors and 7.8:1 compression and raised maximum output to 150 PS (110 kW; 150 hp) at 5000 rpm.
