NSU Motorenwerke AG, or NSU, was a German manufacturer of automobiles, motorcycles and pedal cycles, founded in 1873. Acquired by Volkswagen Group in 1969, VW merged NSU with Auto Union, creating Audi NSU Auto Union AG, ultimately Audi. The name NSU originated as an abbreviation of "Neckarsulm", the city where NSU was located.

Volkswagen AG, known internationally as the Volkswagen Group, is a German public multinational conglomerate manufacturer of passenger and commercial vehicles, motorcycles, engines and turbomachinery. Headquartered in Wolfsburg, Lower Saxony, Germany, and since the late 2000s is a publicly-traded family business owned by Porsche SE, which in turn is half-owned but fully controlled by the Austrian-German Porsche and Piëch family. The company also offers related services, including financing, leasing, and fleet management. In 2016, it was the world's largest automaker by sales, and keeping this title in 2017, 2018, and 2019, selling 10.9 million vehicles and was the largest automaker by revenue in 2022. It has maintained the largest market share in Europe for over two decades. It ranked seventh in the 2020 Fortune Global 500 list of the world's largest companies. In Forbes Global 2000 2023 Volkswagen Group ranked 29th.