Mercedes ML350 BlueTEC does right by diesel

If you haven't driven one in a decade or so, forget what you thought you knew about Rudolf Diesel's 1883 invention: that diesel engines are noisy, smoky, heavy, substantially more expensive to build and slow. Though light-duty diesels haven't caught on in the U.S., there's a reason why they dominate European markets where fuel costs are about double what we pay.

Steven Cole Smith

September 16, 2011