Premise: BRABUS GmbH, founded 1977 in Bottrop (Ruhr Area), Germany, is a high-performance aftermarket tuning company which specializes in Mercedes-Benz, Smart, Tesla and Maybach vehicles. Brabus became the largest Mercedes tuner, other than Mercedes-AMG which became a DaimlerChrysler affiliate in the 1990s.
Hypothesis: Brabus GmbH was the largest German tuner in the 1990s.