Fourring

Fourring commonly refers to the emblem of Audi, the German automobile manufacturer. The emblem consists of four interlinked rings rendered in metallic chrome that appear on the front grille, wheel caps, and official branding of Audi vehicles.

The four rings symbolize Auto Union, the 1932 merger of four German carmakers: Audi, DKW, Horch, and Wanderer, whose combined resources formed the basis of the modern Audi company. The logo thus embodies the unity of the four brands under Auto Union and the continuity of their automotive heritage.

Over the decades the logo has remained central to Audi's corporate identity, with stylistic updates that preserve the interlocking-ring motif. It is typically presented in silver or chrome against dark backgrounds, and is used across cars, marketing materials, dealer signs, and digital media.

In branding and intellectual property terms, the four-ring emblem is a registered trademark of Audi AG and is widely recognized as a symbol of German engineering, precision, and performance. The term "fourring" is rarely used outside discussions of Audi's logo, but may be encountered in automotive journalism or branding references.