CARS.COM — The good folks at AMG — Mercedes-Benz’s performance division — have been getting creative with both powertrain development and design, culminating in the Mercedes-AMG GT Concept. The AMG GT Concept, appearing at the 2017 New York International Auto Show, is a fastback sedan that shares many of its gorgeous lines with the AMG GT coupe. The resemblance is particularly strong in the front and rear of the concept car. In fact, looking directly at the front or rear of the concept car, you’d be hard-pressed to distinguish it from the production coupe. And that is a very, very good thing.