Mercedes-Benz W120

The Mercedes-Benz W120 and Mercedes-Benz W121 are technically similar inline-four cylinder sedans of slightly different engine displacements made as two model series by Mercedes-Benz, the 180 and 190:the W120 was introduced as the 180 in 1953, powered by the company's existing 1.8 liter M136 engine. From 1954, the W120 was also offered with a diesel engine as the Mercedes-Benz 180 D. Both versions were sold through 1962

the W121 debuted as the 190 in 1956, powered by a 1.9 liter M121 engine,. From 1958, it was also offered with the OM621 diesel, sold as the 190 D. Both versions were sold through 1961.