Big Butt, So What? September 15, 2016 By Product Expert Posted in Mercedes-AMG, Mercedes-Benz GT, Mercedes-Benz GT R, Mercedes-Benz GT S 2018 Mercedes-Benz GT C Roadster Video And Pictures The Mercedes-AMG GT C Roadster will be released in the fall of 2017 as a 2018 model. In comparison to the GT coupe, you can expect less roof, more power, and a bigger butt. Check Out The GT Roadster! Formula 1 Styling Meets Road Supremacy Open-Air Exhilaration: The Pinnacle of Modern Roadster Dynamics Bespoke Automotive Artistry: The One-of-One Luxury Off-Road Legend Synchronized Velocity: The High-Performance Digital Core of AMG® Driving Performance