What is ABB in the automotive context?

[DiTyler]

ABB refers to the three leading German automotive manufacturers: Audi, Mercedes-Benz, and BMW. Audi is a German luxury car brand headquartered in Ingolstadt, Germany, with its logo featuring four interconnected rings. This emblem symbolizes the company's origin as a merger of four separate entities, with each ring representing one of the original companies. Mercedes-Benz is another prestigious German luxury automobile marque, renowned worldwide for its three-pointed star emblem. As a manufacturer celebrated for luxury and high-performance vehicles, Mercedes-Benz is based in Stuttgart, Germany, producing a diverse range of passenger cars and medium-to-large commercial vehicles. The brand's lineup includes various classes such as A-Class, B-Class, C-Class, CL-Class, CLK-Class, CLS-Class, E-Class, and S-Class.