While Mercedes-Benz and AMG may be claiming that future high-performance models bearing the three-pointed star will not place such a heavy emphasis on high horsepower, that doesn't mean aftermarket tuner RENNTech is giving up the fight. The German tuner announced today a new Stage 3 package for any Mercedes AMG model powered by the company's twin-turbo 6.0L V12, a.k.a. the AMG 65-series of models. These include the S65, CL65 (shown) and the SL65 AMG.