The Mercedes-Benz 170S-D had a 1,767cc engine which produced 40ps/30kW.
The Mercedes-Benz 170S-D was produced by Mercedes-Benz between 1949 and 1955. It was a diesel-powered version of the popular 170S model and was designed to be more fuel-efficient and cost-effective. The 170S-D was powered by a 1.8-liter four-cylinder diesel engine that produced 38 horsepower and had a top speed of 75 mph. One of the unique features of the 170S-D was its fuel system. The diesel engine required a high-pressure fuel pump and a pre-heating system to help with the ignition of the fuel. This was accomplished by using a glow plug that was heated by a battery-powered electrical system. The 170S-D was available in sedan, convertible, and station wagon body styles. It was also known for its durability and was often used as a taxi cab in Europe. Today, the Mercedes-Benz 170S-D is a rare and sought-after collector’s car due to its unique diesel engine and historical significance.
You can read all about the Mercedes-Benz 170S here: https://en.wikipedia.org/wiki/Mercedes-Benz_W191