Mercedes-Benz wants to sell eight diesel-engined models in the U.S. by 2014, according to recent remarks made by Philipp Schiemer, the company’s vice-president for product management. Presently, the Stuttgart-based automaker offers us oil-burners in its E-, M-, GL-, and R-class models, with a diesel S-class on the way. The S350 BlueTec, which is powered by the same 3.0-liter turbo-diesel V-6 that’s in the company’s other American diesel models, will be offered exclusively with 4Matic all-wheel drive when it arrives in showrooms in the fall of 2011.