Mercedes-benz is a world famous German automobile brand. [1] In January 1886, Carl Benz invented the world's first three-wheeled car and obtained the patent (Patent Number: DRP 37435[2]). At the same time, Gottlieb Daimler, another founder of Benz, also invented the world's first four-wheeled car. Since then, the world has changed. In June 1926, Daimler merged with Mercedes Benz to form Daimler-Benz Automobile Company, and the car named Mercedes Benz officially appeared, and from then on to the high quality, high performance automobile products known in the world. In addition to high-end luxury cars, Mercedes Benz is also the world famous bus and heavy truck manufacturers. Currently, Mercedes-Benz is owned by Daimler AG. With BMW, Audi called the "troika".