Report: AMG to shrink engines in addition to direct-injeciton, stop-start tech

With AMG no longer focused on chasing big horsepower numbers, efficiency could quickly become the new performance benchmark for the Affalterbach tuner. To that end, Mercedes' performance arm may be cutting the displacement of its engines in addition to the debut of new direct-injection and stop-start technology. A range of new diesel models, advanced lightweight materials and construction methods are currently in development, as well as hybrid systems, and by next year AMG will reportedly introduce engine stop-start and direct-injection technology into its lineup. But pulling down engine displacement from the 6.2L found in the company's '63'-branded AMG models to 4.6-5.5L could help push efficiency even higher.