Mercedes Adding 3.0L Twin-Turbo V6 to Engine Lineup By Jason Siu Dec 19 2012 Share this Article Tweet Mercedes-Benz will be expanding its engine lineup with the addition of a 3.0-liter, twin-turbo V6 powerplant with at least 335 hp and 295 lb-ft of torque. Continue Reading... Filed under: Convertibles Coupes Family Sedans Featured Articles German Luxury Cars Mercedes-Benz SedansTags: cls, cls v6, Mercedes, mercedes cls, mercedes twin turbo v6, Mercedes-Benz, mercedes-benz cls, twin-turbo v6