- It’s not hard to get excited by a Mercedes-AMG sports car aimed at the Porsche 911. But it can be hard to wrap your head around the Mercedes-AMG GT lineup . First there was the GT S, which was followed by an entry-level, non-S GT. Then came the other bookend, the top-of-the-line GT R , and the race car, which gets no name at all beyond the class it sometimes competes in: Mercedes-AMG GT3. Then came the inevitable GT convertible, the GT C, which seemed to be positioned as the roadster complement to the GT S coupe—until it was announced that there will be a GT C coupe as well. There’s no word on an R convertible, although there will be a four-door model from AMG badged as a GT that almost certainly will be available in many, if not all, of the aforementioned trim levels. (When discussing these options with your spouse or financial manager, keep in mind that there are GT S and C coupes and convertibles, but Mercedes also makes S- and C- class coupes and convertibles, which cover a wi