The Paul Bracq-designed W111 series of 1959 to 1971 was exclusive, expensive, and largely hand-built. Body styles included a four-door saloon which was built from 1959 to 1968 and two-door coupes and cabriolets from 1961 to 1971. The unique tailfins earned the models the nickname, Heckflosse, German for 'fintail.' Power was initially sourced from a 2.2-liter inline 6-cylinder engine paired with a four-speed automatic transmission.
The Mercedes-Benz 280 SE
The Mercedes-Benz 280 SE was built from 1967 through 1971, initially with a 2,778cc engine before being joined by a 3,499cc variant in 1969.
The Mercedes-Benz 280 SE 3.5
The 280 SE 3.5 was the first Mercedes-Benz post-war coupe equipped with an engine that exceeded 3 liters. Introduced in August 1969, power was sourced from a new M116 3,499cc V8 engine offering 200 PS at 5,800 RPM. Zero-to-sixty mph was accomplished in 9.5 seconds and the top speed was reached at 210 km/h. Styling updates modernized its appearance with noticeable changes to the front, gaining a lower and wider grille, and rubber rub strips were added to the bumpers.
Production of the 280 SE 3.5 ended in July 1971, outlasting the 280 SE with the 2,778cc engine which had ended a few months earlier. A total of 3,797 examples of the 280 SE Coupe and 1,390 of the 280 SE Cabriolet were built with the 2,778cc engine. Slightly fewer examples were built with the 3,499cc (3.5 liter) engine, at 3,270 for the coupe and 1,232 for the cabriolet.
Mechanical Specification
The 2,778cc overhead-camshaft, seven-bearing six-cylinder engine developed 160 horsepower at 5,500 RPM in fuel-injected 'SE' form. With the manual transmission, the top speed was achieved at 118 mph, with the automatic nearly reaching that figure. Compared to its predecessor, the new M130 engine brought improved fuel economy and more efficient emissions control.
The 3,499cc, single overhead camshaft, 90-degree, M116 engine had two valves per cylinder, Bosch Jetronic fuel injection, and with 9.5:1 compression, it developed 197 horsepower (200 PS) at 5,800 RPM. The bore measured 92 mm (3.62 inch) and the stroke at 65.8 mm (2.59 inch). The block was made of cast iron and the head was formed from aluminum. It used a wet sump oiling system and a water-cooled cooling system.
The fully independent suspension system was similar to the equivalent saloon model, albeit reconfigured for a lower ride height, with braking courtesy of discs all round.
Standard Amenities
The well-equipped Mercedes-Benz 280 SE featured a leather-covered dashboard, leather upholstery, Becker radio, and round speedometer and rev counter flanking vertically stacked gauges. Among the list of optional equipment included air conditioning, electric windows, central locking, and power-assisted steering.
The 1969 Mercedes-Benz 280 SE
The two-door, five-passenger 280 SE coupe had a U.S. base price of approximately $9,200 while the two-door, five-passenger cabriolet listed at nearly $10,000. Their wheelbase measured 108.3 inches and they had an overall length of 192.9 inches. A four-speed manual transmission was standard but the optional automatic (adding approximately $340 to the base price) was commonly fitted.
by Dan Vaughan