Mazda has never been afraid of some truly odd engine designs. It keeps trying to make the Wankel work. It has a gas engine with compression ignition. And the company has made 14:1 compression gas ...

Auto manufacturers are businesses. Like other businesses, the bottom line is a big deal. If ever there is a chance to cut costs while netting the same result, it's a big win. So, when Jaguar needed a ...

The diesel engine was a revelation when it first entered the market in the early 1900s, and has since had a number of ...