ABT Sportsline is a motor racing and auto tuning company based in Kempten im Allgäu, Germany. ABT mainly deals with Audi and the related primary Volkswagen Group brands—Volkswagen, Å koda, and SEAT—modifying them by using sports-type suspensions, engine power upgrades, lightweight wheels, aerodynamic components and more. It has been active in DTM for more than a decade. After the death of their father Johann in 2003, the company with 170 employees in their headquarters in Kempten was run by the brothers Hans-Jürgen Abt (born 1962, Managing Director) and Christian Abt. Since 2011, Hans-Jürgen Abt has run the company.