This resulted in a first prototype, the Ardie-Ganz, built at Ardie in 1930 and a second one completed at Adler in May 1931, which was nicknamed the Maikäfer (‘May-Beetle’, common European cockchafer Melolontha melolontha). News about the prototypes spread through the industry. At Adler, Josef Ganz was assigned as a consultant engineer at Daimler-Benz and BMW where he was involved in the development of the first models with independent wheel suspension: the Mercedes-Benz 170 and BMW AM1 (Automobilkonstruktion München 1). The first company to build a car according to the many patents of Josef Ganz was the Standard Fahrzeugfabrik, which introduced its Standard Superior model at the IAMA (Internationale Auto- und Motorradausstellung) in Berlin in February 1933. It featured a tubular chassis, a mid-mounted engine, and independent wheel suspension with swing-axles at the rear. Here the new Chancellor Adolf Hitler expressed interest in its design and low selling price of . Under the new anti-Semitic government, however, Josef Ganz was a target for his enemies from the automotive industry that opposed his writings in Motor-Kritik. Influence on Porsche After news about the results achieved with the Ardie-Ganz and Adler Maikäfer prototypes reached Zündapp, the company turned to Ferdinand Porsche in September 1931 to develop an "Auto für Jedermann"—a "car for everyman". Porsche already preferred the flat-4 cylinder engine, as was also tried out by Daimler-Benz under supervision of Josef Ganz almost a year previous, but Zündapp preferred a watercooled 5-cylinder radial engine. In 1932, three prototypes were running. All of those cars were lost during the war, the last in a bombing raid over Stuttgart in 1945. The influence of Ganz on the design of the Volkswagen Beetle is a matter of dispute. Arrest Josef Ganz himself was arrested by the Gestapo in May 1933 based on falsified charges of blackmail of the automotive industry. He was eventually released. He fled Germany in June 1934 – the month Adolf Hitler assigned Ferdinand Porsche to design a mass-producible auto for a consumer price of 1,000 Reichsmark. After a short period in Liechtenstein, Josef Ganz settled in Switzerland where with government support he started a Swiss auto project. In Germany production of the Standard Superior and the Bungartz Butz ended. The first prototypes of the Swiss auto were constructed in 1937 and 1938 and plans were formed for mass-production inside a new factory. After the start of World War II, however, Ganz