AMG's version of the Mercedes M-class, which debuted last year in Frankfurt, joined the new AMG R-class for the North American debut of the new 6.3-liter, 32-valve, 505 hp V8. The  ML 63 AMG shares the same seven-speed automatic transmission.

The AMG interior treatment in the ML63 is also similar to the R63's, with minor differences, including a stop watch/lap timer integrated into the instrument cluster.

The chassis shares the R63's AIRMATIC height-adjustable suspension, with the addition of bespoke AMG shocks and a specially configured Adaptive Damping System. The ML63 rolls on 20-inch wheels with 295/40 Z-rated tires.

The exterior treatment of the ML 63 AMG particularly impressed our man Chris Paukert as a vast improvement over the standard version.

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