Mercedes-Benz introduced the Type 230 as a long-wheelbase version for the Type 200 in 1936 as a four-door sedan or top-cabriolet.
While the Hindenburg airship took its maiden flight in March 1936, creating a direct flight connection between Germany and the U.S., on the ground, Mercedes-Benz was stronger than ever. It introduced the W143 model in May. Despite the economic depression, the carmaker continued improving its products and developing new models to get more customers.

The carmaker built the W143 with a similar look as the 200. Its tilted radiator was already an established brand image together with the headlights connected via a chromed bar between them. Its designers extended the curved front fenders towards the back of the car, forming two side steps to ease the ingress and egress from the vehicle. Mercedes installed the door-hinges only on the B-pillars. At the back, the trunk included a spare wheel.

Inside, the carmaker installed two individual seats at the front and a bench in the back. Its flat dash panel included the dials in the middle. It was a comfortable, roomy vehicle for five adults. Its four cranked windows allowed the passengers to get more fresh air. A top-cabriolet version was also available.

Under the hood, the German carmaker installed an inline-six engine with a 2.3-liter displacement, hence the car’s name, that provided 55 hp. It was paired to a synchromesh four-speed manual gearbox with direct-drive for the fourth gear. Mercedes-Benz installed a wider track both front and rear and an independent suspension with leaf springs in all corners to provide more comfort and a better cornering speed.