The new Mercedes-Benz model, independently designed by AMG, branches out as another aesthetically stunning, power-driven V8′er, which will monster down the road in style.  Top down you say? Don’t mind if I do.  The 6.3 liter-V8 engine outputs a worthy 563 horsepower at 6,800 rpm and 479 lb-ft of torque at 4,750 rpm, which propels...