While just a concept for the time being, “90% of it”, assures Gorden Wagener, “is what you’ll see in the production car launched next year”. La S-Class Coupé, one of the biggest surprises at the Frankfurt Motor Show, is a new landmark for the Sindelfingen based carmaker. “It will be astonishing”, the design director for Mercedes promised Auto&Design two years ago. And it certainly is. “While the CL name”, says Wagener, “will be dropped to bring the car within the S Class family, it will in fact no longer be a two-door S Class, as CLs have always been, but an exotic supercar with the same mystique as a Ferrari, Maserati or Aston Martin.” While the new S Coupé not only interprets the same concept of “modern luxury” heralded with…