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 ...

"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 ...

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 ...