AMG today unveiled another chapter in its “AMG Performance 2015″ with the newly produced 5.5L V8 biturbo engine that will enter the lineup in summer 2010. The new engine will make its debut in the upcoming S 63 AMG.AMG says that the new 5.5L V8 biturbo engine makes between 544-hp to 571-hp with a maximum torque of 590 lb-ft to 664 lb-ft. In the new S 63 AMG with the new AMG SPEEDSHIFT MCT 7-speed sports transmission the 5.5L V8 biturbo engine will help return a fuel-economy of 22 mpg, an improvement of 25 percent when compared to the current S 63 AMG.
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