Mercedes-Benz W111 Cabriolet 250 SE (150 Hp)

The Mercedes-Benz W111 Cabriolet 250 SE represents the pinnacle of open-top luxury from the German automaker during the mid-1960s. Produced between August 1965 and December 1967, this model is part of the larger W111 series, which replaced the W110 “Fintail” models. The 250 SE Cabriolet, distinguished by its elegant styling and refined engineering, catered to a discerning clientele seeking a sophisticated grand tourer. It was never officially sold in the United States, but examples were imported privately, becoming highly sought-after collector’s items. The W111 series, as a whole, solidified Mercedes-Benz’s reputation for quality and innovation in the post-war automotive landscape.

Mercedes-Benz W111 Cabriolet 250 SE: A Legacy of Elegance

The W111 series, encompassing saloons, coupés, and cabriolets, was a significant step forward for Mercedes-Benz. The 250 SE Cabriolet, in particular, offered a unique blend of performance and comfort. It was positioned as a premium vehicle, competing with other luxury convertibles of the era, such as those from Jaguar and Porsche. The “SE” designation stands for “Sonderausstattung” (Special Equipment), indicating a higher level of trim and features compared to the standard W111 models. The Cabriolet body style, crafted by renowned coachbuilders, added a substantial premium to the vehicle’s price, making it an exclusive offering.

Engine & Performance

The heart of the 250 SE Cabriolet is its 2.5-liter inline-six cylinder engine, designated M 129 I / 129.980. This naturally aspirated engine produces 150 horsepower at 5500 rpm and 216 Nm (159.31 lb.-ft.) of torque at 4200 rpm. The engine features multi-port manifold fuel injection, a relatively advanced technology for the time, contributing to smooth power delivery and improved fuel efficiency. Power per liter is rated at 60.1 Hp/l. The engine’s longitudinal front-engine layout and rear-wheel drive configuration provide a balanced driving experience. Acceleration from 0 to 60 mph is achieved in approximately 11.2 seconds, while the car can reach a top speed of 190 km/h (118.06 mph). The four-speed manual transmission allows for driver engagement, although an automatic transmission was also available as an option. The weight-to-power ratio of 10.5 kg/Hp and weight-to-torque ratio of 7.3 kg/Nm contribute to a respectable, if not overtly sporty, performance profile.

Design & Features

The W111 Cabriolet 250 SE boasts a classic, elegant design characterized by its long hood, flowing lines, and understated chrome accents. The two-door cabriolet body style provides open-air motoring for up to five passengers. The soft top, when retracted, neatly folds away, maintaining the car’s graceful silhouette. Inside, the cabin is appointed with high-quality materials, including wood trim, leather upholstery, and polished metal accents. While safety features were less sophisticated than those found in modern vehicles, the 250 SE offered disc brakes on all four wheels, a significant advancement for the era. The spacious trunk provides 530 liters (18.72 cu. ft.) of storage. The car’s dimensions – 4880 mm (192.13 in.) in length, 1845 mm (72.64 in.) in width, and 1435 mm (56.5 in.) in height – reflect its grand touring proportions. A fuel tank capacity of 82 liters (21.66 US gal) allows for extended journeys.

Technical Specifications

Today, the Mercedes-Benz W111 Cabriolet 250 SE is highly prized by collectors for its timeless design, engineering excellence, and historical significance. It represents a golden age of automotive craftsmanship and continues to evoke a sense of luxury and sophistication.