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, ...

1. All new for 2012 the latest generation Mercedes M-Class is available with four engines, a 302 hp V6 powered ML350, a 402 hp twin-turbo V8 powered ML550, a 518 hp twin-turbo V8 ML63 and out diesel ...

Among enthusiasts, there's a saying regarding project cars that goes something like this: "Cheap, fast, reliable -- pick two." The same idea could apply to luxury SUVs, only the descriptors could be ...

"Why on earth would someone not choose the diesel engine if they're shopping for an M-Class?" a fellow staffer asked me after spending some seat time in the all-new 2012 Mercedes-Benz ML350 Bluetec. I ...