Mercedes-AMG GmbH, commonly known as AMG, is the high performance division of Mercedes-Benz. AMG independently engineers, manufactures and customizes Mercedes-Benz AMG vehicles. Mercedes-AMG is headquartered in Affalterbach, Baden-Württemberg, Germany. AMG was originally an independent engineering firm specializing in performance improvements for Mercedes vehicles; Daimler-Benz AG took a controlling interest in 1990, then became sole owner of AMG in 2005. Mercedes-AMG GmbH is now a wholly owned subsidiary of Daimler AG. AMG models typically have more aggressive looks, a higher level of performance, better handling, better stability and more extensive use of carbon fiber than their regular Mercedes counterparts. AMG models are typically the most expensive and highest-performance of each Mercedes-Benz class.