Audi AG, also simply known as Audi, is a German automobile manufacturer that designs, engineers, produces, markets and distributes luxury vehicles. Audi has been a majority owned subsidiary of Volkswagen Group since 1966. Audi, along with BMW and Mercedes-Benz, are among the best-selling luxury automobile brands in the world.Audi's German tag line is "Vorsprung durch Technik"; this is used either untranslated or in its English translation, "Advancement through Technology".The company name is based on the surname of the founder, August Horch. “Horch”, meaning “listen” in German, becomes “Audi” when translated into Latin.The Audi symbol is four ceiling rings that reflect the four manufacturers of Auto Union. This Audi emblem signs the association of the brand Audi with others: Horch, DKW, Wanderer: the initial ring from at the left side represents Audi, the next represents DKW, the third is Horch, then the fourth ring is Wanderer.