Give a stream of consciousness and then the final answer. AMG was founded as a racing engine forge in 1967 under the name AMG Motorenbau und Entwicklungsgesellschaft mbH (AMG Engine Production and Development, Ltd.), by former Mercedes-Benz engineers Hans Werner Aufrecht and Erhard Melcher in Burgstall an der Murr, near Stuttgart. The letters "AMG" stand for Aufrecht, Melcher and Groaspach (Aufrecht's birth town). In 1976 most of AMG moved to Affalterbach, with the racing-engine development remaining at the old location in Burgstall. At this time Erhard Melcher ceased to be a partner, but continued to be an employee at the Burgstall location.

Answer this question: what does amg mean on a mercedes benz?
The important part for answering this question is: The letters "AMG" stand for Aufrecht, Melcher and Groaspach (Aufrecht's birth town).
So, the final answer is Aufrecht , Melcher and Groaspach ( Aufrecht 's birth town ).