Description
The Mercedes-Benz 290 Cabriolet D was the most spacious and formal open-top variant of the W18 series, introduced in 1933 as Mercedes-Benz expanded its mid-size six-cylinder range. While the Cabriolet A served as an exclusive two-seat luxury model and the Cabriolet B offered a more practical four-seat layout, the Cabriolet D represented the pinnacle of comfort and dignity within the 290 lineup. With four full doors, a generous interior and a stately presence, it was designed for private owners, touring families and even chauffeur-driven service, combining refined engineering with the craftsmanship of Sindelfingen’s finest coachwork.
Power was provided by the smooth and reliable 2.9-litre inline-six engine, producing approximately 60 horsepower. This engine delivered ample low-speed torque and a relaxed, quiet running character that suited the Cabriolet D’s formal touring role. It enabled the car to cruise comfortably at moderate speeds, with enough reserve power for long-distance travel or carrying multiple passengers. The four-speed manual gearbox, equipped with synchromesh on the upper gears, contributed to the car’s refined driving experience, offering clean shifts and predictable performance.
The 290 Cabriolet D was built on the longer wheelbase of the W18 family, giving it a spacious cabin and a settled, composed ride. The ladder-frame chassis was strong and well suited to an open four-door body. The independent front suspension with a transverse leaf spring and the swing-axle rear setup with coil springs provided a supple ride that absorbed uneven road surfaces with ease. Mechanical drum brakes on all four wheels ensured reliable stopping power, and the steering—though firm at low speeds—became smooth and controllable once the car was underway. The long wheelbase enhanced comfort, making the Cabriolet D especially well suited to chauffeur-driven travel or extended touring.
The Sindelfingen-built bodywork gave the Cabriolet D an unmistakably dignified presence. Its four-door layout set it apart from the more compact Cabriolet A and B variants, offering easy entry and exit for passengers. The proportions were elegant and balanced: a long bonnet, sweeping wings, tall side panels and a spacious passenger compartment covered by a large, high-quality folding roof. With the roof raised, the car appeared formal and limousine-like; with the roof lowered, it transformed into a grand open tourer with impressive visual presence. Chrome accents and fine detailing added a touch of understated luxury without excessive ornamentation.
Inside, the Cabriolet D offered a comfortable and well-appointed cabin designed to accommodate four adults with ease. The extended wheelbase provided generous legroom, especially in the rear compartment, making long journeys pleasant and relaxing. Upholstery was typically offered in durable cloth or optional leather, while polished wood or neatly finished metal trim adorned the dashboard and door panels. The instrument cluster was clear and elegantly arranged, reflecting Mercedes’ commitment to functionality and craftsmanship. The folding roof, when lowered, created a bright, airy atmosphere ideal for scenic touring.
On the road, the Mercedes-Benz 290 Cabriolet D delivered a calm and refined driving experience. The smooth six-cylinder engine, comfortable suspension and long wheelbase combined to create a soft, rolling ride well suited to both urban and rural travel. The car was not intended for fast driving or sharp handling; instead, it excelled in providing dignified, unhurried motoring. Whether used by families, private owners or in semi-official service, the Cabriolet D conveyed an unmistakable sense of prestige and comfort.
The Cabriolet D occupied an important place within the W18 range as its most spacious and formal open-top model. It was popular among buyers who desired both the romance of open-air travel and the practicality of a four-door touring car. Its craftsmanship and elegant proportions made it one of the standout designs within the Mercedes mid-size lineup.
Today, the Mercedes-Benz 290 Cabriolet D is regarded as one of the most desirable pre-war open touring cars produced by the company. Surviving examples are highly sought after for their elegance, rarity and historical significance. The combination of refined six-cylinder performance, Sindelfingen craftsmanship and stately four-door open-body design makes the 290 Cabriolet D a quintessential example of 1930s Mercedes-Benz luxury and a prized addition to any serious classic car collection.