Audi's trademark is four connected rings. Audi's existing four-chain trademark in America is the first symbol of 1932 automobile alliance, which symbolizes the alliance of Audi, Hoshi, DKW and wanderer4. 1965, with the rebirth of Audi brand, continue to use the four-ring logo. Audi is an internationally renowned luxury car brand. As a representative of high-tech level, quality standard, innovation ability and its classic models, Audi is one of the most successful automobile brands in the world. The company is headquartered in Ingolstadt, Germany. Audi Group includes its parent company and its subsidiaries Audi Hungary, quattro Co., Ltd., Lamborghini Automobile Company and Cosworth Technology Company, Audi Brazil and Audi Senalita. In addition, Audi has set up production plants in China, Malaysia and South Africa. Audi is one of the oldest automobile manufacturers in Germany. Since 1932, Audi has adopted the four-ring logo, representing the automobile alliance company that Audi merged with DKW, Hodge and Rover. In 1930s, automobile alliance companies covered all passenger car fields provided by German automobile industry, from motorcycles to luxury cars. Audi's history of manufacturing cars and motorcycles in Germany can be traced back to19th century. At first, Audi and Hoch in Saxony, Wanda in Zwickau, Wanda in chemnitz-Siegmar and dkw in zschopau made outstanding contributions to the progress of German automobile industry at that time. 1932, four automobile companies merged into Autounion. In terms of automobile production, the automobile alliance was the second largest automobile manufacturing company in Germany at that time, and its commodity logo was four connected rings, representing the four automobile companies involved in the merger. The four-ring symbol appeared for the first time in the world. Million car purchase subsidy