Barely four years later AMG surprised the motorsports world when its 6.8 liter Mercedes-Benz 300 SEL took second place at the 24 Hour Spa-Francorchamps race. In 1983, AMG developed a four-valve per cylinder head for V8, leading to signature vehicles like the Hammer, but it also provide the foundation stone for further expansion nit just in Germany but in places as far afield as America and Japan.
By mid-1990s, AMG has evolved from modifying Mercedes road cars to being a virtual manufacturer of specialist road-going Mercedes in its own right.
On 1 January 1999, Daimler-Chrysler acquired 51 percent of AMG shares and AMG was rename Mercedes-AMG GmbH. Mercedes AMG GmbH – the crack performance division on the Mercedes Car Group was formed and began operations in Affalterbach.
History of Mercedes-AMG GmbH