An AMG variant of the redesigned 2012 M-Class, announced this summer, was inevitable. The new ML63 AMG makes 518 or 550 horsepower thanks to a twin-turbocharged V-8 replacing the old naturally aspirated engine.
The new engine helps the ML63 gain 4 mpg in combined ratings, a big improvement for a performance SUV that’s capable of zero to 60 mph in 4.7 seconds.
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