The Audi logo is a four-ringed symbol that has become synonymous with the German automaker. The logo was first introduced in 1932 and has been used ever since. The four rings represent the four companies that merged to form the Auto Union in 1932: Audi, DKW, Horch, and Wanderer. The logo is a simple yet powerful symbol that has become a symbol of luxury and quality for the Audi brand. The rings are also a reminder of the company’s commitment to innovation and progress.