The renderings come from theophiluschin and the two pictures are pretty good work. BenzBoost finds itself preferring the car with four doors over two however. The feeling is similar to having a two door CLS instead of the four door. Somehow, as a coupe it just does not seem to work as well.
Will Mercedes introduce a coupe version? They did it with the C-Class although that is a more upscake model. Mercedes-Benz also has yet to do a coupe version of any of its "four door" coupe designs. Interesting to think about regardless.