Mercedes-Benz captivated the entire automotive world when it first announced the return of the iconic gullwing—in the form of the SLS AMG—at the Frankfurt Motor Show back in 2009. Now, five years later, the gullwing is out of production (the 2015 SLS AMG GT Final Edition is the models’ swan song) and the German automaker is ready to follow it up with an all-new range-topping sports car, the Mercedes-AMG GT. At first look, it seems that the designers at AMG simply made a smaller, more powerful, wing-clipped ver…