The Mercedes-Benz 230 n was introduced in 1937 as the successor to the Type 230 (W 21). The car was built on the short chassis with pendulum axle rear and axleless construction with transverse leaf springs front of the type 200 (W 21). The body was longer and wider than that of its predecessor. The six-cylinder inline engine with 2229 cc and 55 hp (40 kW) also came from the W 21, but had a full four-speed gearbox. As factory bodies were the two- or four-door sedan, the Cabriolet A or C and the pure chassis and the Roadster to choose from.