The new 2013 Mercedes S-Class is enjoying the Swedish winter so much it is dropping camouflage. The 2013 Mercedes-Benz S-Class was spotted by our tireless spy photographers undergoing some cold weather testing. While the world is focused on the 2012 Geneva Motor Show in nearby (well, in Europe anyway) Switzerland, the German automaker is hard at working prepping the new S-Class for its debut later this year/early next year. The silver flagship sedan will supplant the Maybach and feature the in-vogue LED daytime running lights, a new (and larger) front grille and a range of fuel efficient engines, of which include a plug-in hybrid.