1. Audi: The logo is four interlocking rings. These companies were once Audi S4 manufacturers of bicycles, motorcycles and passenger cars. Since the company was originally formed by the merger of four companies, each ring is a symbol of one of the companies.

2. Volkswagen: The logo consists of three "v"s made with the middle finger and the index finger, which means that Volkswagen and its products will win - win - win. Car marks include the car's trademark or factory logo, product label, engine model and factory number, vehicle model and factory number, vehicle identification number, etc.

3. Mercedes-Benz: As the symbol of a car, the "three-pointed star" symbolizes mechanization and integration on land, water and air. In 1916, a circle was added around it, with four small stars inlaid above the circle and the words "Mercedes" below. "Mercedes" means happiness.

4. BMW: The BMW in the logo means the Bavarian automobile manufacturer. The color and combination of the logo come from the state emblem of Bavaria, where BMW is located. The blue and white pattern is the state emblem of Bavaria, where the company is located.

5. Toyota: The three oval logo has been used since the early 1990s. The large oval in the logo represents the earth, and the two ovals in the middle are vertically combined to form a T, which represents Toyota.