Abt Sportsline is a motor racing and auto tuning company based in Kempten im Allgäu, Germany. Abt was founded in 1896 in Southern Germany as a tuner for horse carriages. Later generations Abt became succesful in motorsports and are still racing today in the DTM and the ADAC GT Masters. Abt has taken much of their racing knowledge and adapted it for the street, making the company a successful tuner for VAG and especially Audi models.