The internal combustion engine, now more than 200 years old, will be with us for a long time to come yet.Powering more than 1 billion vehicles on the planet and almost 100 million new ones each year, it is the...

It's a technology that's been a sort of Holy Grail in the auto industry for at least a couple of decades.Now Mazda, one of the smallest global automakers, plans to introduce it in a radical new engine to be used...