Here's how the Audi logo actually came to be. I thought these rings stand for the four German car manufacturers Audi, Volkswagen, BMW and Mercedes. Each in a ring. I don’t even remember from whom and how I heard about these rings. It turns out everything is completely different. And this old logo that is in the photo, was it used on cars as it is? Or is it just an illustration? And of course, thanks for the article, I learned something new today.