Diesel engine cars are becoming a preference to a good number of people because of its economy in fuel consumption as well as much quieter engine operation. Mercedes-Benz USA President Ernst Lieb was quoted as saying that the 2012 GLK will also be available with a 2.2-liter Bluetec diesel. It will cost a few thousand dollars more than its gasoline powered counterpart. The good thing is that the fuel economy of the diesel engine will be able to offset that premium amount on top of the gas powered version over in the long run.

The use of the Bluetec diesel engine will not be limited to the GLK models, according to Mercedes Benz. The next generation C-Class will also be equipped with the same power plant while the E-Class will once again receive diesel power in 2011. This will add to the ML, GL and R-Class of Mercedes Benz that also have the Bluetec motor. Lieb also added that the company aims to corner around 15-20 percent of overall sales in the coming years. The U.S. has overall sales of diesel engine car share in the market ranging from 12 to 20 percent.