Mercedes-AMG is the high performance division of the Mercedes-Benz car company. Mercedes-Benz acquired AMG in 1999. AMG or Aufrecht Melcher Großaspach was founded in 1967 as AMG Motorenbau und Entwicklungsgesellschaft mbH (AMG Engine Production and Development, Ltd.) by former Mercedes engineers Hans-Werner Aufrecht and Erhard Melcher in a town near Stuttgart called Großaspach.
en.wikipedia.org/wiki/Mercedes-AMG