The Audi A4 DTM is a 4-door touring car (DTM) constructed by the German car manufacturer Audi.

Based on the Audi A4, it was continually improved over the course of six facelifts between 2004 and 2011.

After the private Team Abt Audi TT-R was raced from 2000 to 2003, Audi re-entered the DTM series with a factory team since 1992.

Audi's comeback resulted in a successful start and finish with titles for the driver, team, and manufacturer rating of the championship race.

[1] To celebrate its first DTM championship title win in 2004, Audi released a production variant of the A4 called the DTM from 2005 to 2007.