ドルニエ
Claude Dornier was always trying to minimize the dependency of his company Dornier Flugzeugwerke on building aircraft, by diversification into other areas. After World War II, and the Allied ban on aircraft production in Germany until the late 1950s, Claude diversified the company's production and encouraged his son Claudius to find new areas. As a result, Claudius designed and developed a four-seater car, where the two front and two rear passengers sat back to back, for optimal use of the enclosed space. A prototype was built and tested, which was named Dornier Delta. The company had not built a car before, and economic calculations showed that the volume of sales required would make it uneconomical for the company to make the car using its existing facilities.