The Mercedes-Benz S-Class is one of the most respected luxury cars on the road, but the version with the largest engine came long ago.

This arms race for the largest displacement engine had reached its peak in the 2000s with cruiser motorcycles getting larger than ever. Then things had quieted down for a decade or two.

So the German giant, as it usually has, decided to march to the beat of its own drummer, and developed a full-size cruiser powered by the largest boxer-twin engine it has made. That's the largest ...

The long-delayed Boeing 777X can only fly on GE Aerospace’s GE9x, the company’s latest-generation wide-body engine. Hence, GE ...

The name Cummins and diesel are almost synonymous. Even before the big engine builder first partnered with Dodge to put a 5.9-liter inline-six into a Ram pickup, the company was an oil-burning icon.

The machine is called R88, and it's supposed to be the largest helicopter Robinson made ... state of the R88's component parts. Data from the engine and other systems will be recorded with ...