History of the diesel car Production diesel car history started in 1933 with Citroën's Rosalie, which featured a diesel engine option (the 1,766 cc 11UD engine) in the Familiale (estate or station wagon) model. The Mercedes-Benz 260D and the Hanomag Rekord were introduced in 1936. Immediately after World War II, and throughout the 1950s and 1960s, diesel-powered cars began to gain limited popularity, particularly for commercial applications, such as ambulances, taxis, and station wagons used for delivery work. Most were conventional in design. Mercedes-Benz offered a continuous stream of diesel-powered taxis, beginning in 1949 with their 170D powered by the OM-636 engine. Later, in 1959
Diesel multiple unit In 2018 the first bi and tri-mode electro-diesel multiple units were introduced: Canada generally follows similar buffer strength requirements to the USA, but new services are evaluated on a case-by-case basis. As a result, several types of lightweight DMUs have been used: Costa Rica has purchased several Apolo 2400 series DMU railcars from the former narrow gauge operator in Spain, which are run in commuter service. A type of diesel multiple units in the U.S. was the Budd Rail Diesel Car (RDC). The RDC was a single passenger car with two diesel engines and two sets of controls. In the