Mercedes-Benz W128 Cabriolet 220 SE (120 Hp) Hydrak

The Mercedes-Benz W128 Cabriolet 220 SE, produced between August 1959 and November 1960, represents a pinnacle of post-war German automotive engineering and luxury. Part of the “Ponton” series – named for its unibody construction which eliminated separate fenders and running boards, creating a more streamlined “pontoon-like” appearance – the W128 Cabriolet was the most exclusive body style offered. It catered to a discerning clientele seeking open-air motoring with the renowned Mercedes-Benz build quality and refinement. While not widely exported to the United States during its production run, the 220 SE Cabriolet remains a highly sought-after classic, representing a significant piece of automotive history.

Mercedes-Benz W128 Cabriolet 220 SE: A Detailed Overview

The W128 series, introduced in 1959, was a significant step forward for Mercedes-Benz. It replaced the previous 180 and 190 models, offering increased space, improved comfort, and more powerful engines. The Cabriolet variant, the 220 SE, was the top-of-the-line offering, distinguished by its elegant soft-top and luxurious appointments. The “SE” designation indicated “Sonderausstattung” (Special Equipment), signifying a higher level of trim and features. The car’s design reflected the optimistic spirit of the late 1950s, blending American styling influences with traditional Mercedes-Benz elegance.

Engine & Performance

The heart of the 220 SE Cabriolet is its 2.2-liter inline-six cylinder engine, designated M 127 III / 127.983. This engine produced 120 horsepower at 4800 rpm and 189 Nm (139.4 lb.-ft.) of torque at 3900 rpm. While these figures may seem modest by modern standards, they provided ample power for comfortable cruising and spirited driving in the late 1950s. The engine featured multi-port manifold fuel injection, a relatively advanced technology for the time, contributing to smooth operation and improved fuel efficiency. Power is delivered to the rear wheels through a four-speed manual transmission, specifically a Hydrak unit. Acceleration from 0 to 60 mph took approximately 14.3 seconds, and the car could achieve a top speed of 165 km/h (102.53 mph). The weight-to-power ratio of 11.9 kg/Hp and a weight-to-torque ratio of 7.6 kg/Nm provided a balanced driving experience for its era.

Design & Features

The W128 Cabriolet’s body style is a classic two-door, five-seater convertible. Its design emphasized clean lines and a spacious interior. The soft-top, when raised, provided excellent weather protection and a quiet cabin. The interior was appointed with high-quality materials, including leather upholstery and wood trim, reflecting Mercedes-Benz’s commitment to luxury. Safety features, while limited by the standards of the time, included robust construction and reliable braking systems. The car’s suspension – double wishbone with a transverse stabilizer at the front and a trailing arm setup at the rear – provided a comfortable ride, absorbing road imperfections effectively. Drum brakes were used on all four wheels. The steering system employed a cone worm with recirculation balls, offering precise control. The car’s dimensions – 4700 mm (185.04 in.) in length, 1790 mm (70.47 in.) in width, and 1530 mm (60.24 in.) in height – provided ample space for passengers and luggage.

Technical Specifications

The Mercedes-Benz W128 220 SE Cabriolet remains a highly collectible automobile, representing a significant chapter in the company’s history. Its combination of elegant styling, robust engineering, and luxurious appointments continues to captivate enthusiasts today. Its rarity and historical significance ensure its continued appreciation among collectors and automotive historians alike.