The W138 series 260 D was presented at the 1936 International Motorcycle and Automobile exhibition in Berlin.
It was a revolutionary car powered by a 2.6-litre OM 138 four-cylinder diesel engine with the Mercedes-Benz pre-chamber system and Bosch injection pump, which developed 33 kW at 3200 rpm.
The 260 D was remarkably efficient too, using just 9.5 litres of diesel per 100 kilometres, which meant a full tank provided for a range of 400 kilometres.
The range was increased to 500 kilometres on a single tank after modifications to the 1937 model 260 D.
Mercedes-Benz also released a six-seat Pullman saloon car from the start of 260 D production, which became a favourite with taxi companies, although private buyers also took a liking to this and other versions of the model due to the economical nature of the car.
The upgraded 1937 car was more a facelift of the 260 D, with a new radiator grille and smaller headlight housings. There were also two 6/7 seat Pullman variants, which were now given a more luxury treatment.
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