Skyactiv

The Skyactiv-X is a high-compression gasoline engine, its 16:1 compression ratio comparable to that of a diesel engine.

It's not the death of diesel, and other surprising facts.

"Take everything you know about engines and turn it around."

Mazda is not trying to hide what it's testing.

Diesel's on the outs in Europe, and EVs aren't ready for prime time.

Certain models will be electrified.

And like any dream, it probably won't be there when we wake up.

The new engines employ a system that improves fuel economy and reduces emissions.

We don't know when they'll be coming, but apparently they're coming.

Mazda continues to wring out more fuel efficiency from its Skyactiv gas-engine technology.

The Mazda CX-9's new turbocharged four-cylinder could see duty in the brand's other products, which means it's more of a product planning decision than an engineering one.

The rotary sportscar you want probably isn't coming any time soon, but it's in Mazda's interest to lead you on.

Mazda's Jeff Guyton says that the company's Skyactiv fuel efficiency plan will work, without the immediate need for hybrids or EVs.

Following a rather simple and vague brief, Mazda and Toyota formally confirmed that they are forming a long-term partnership.

Toyota could loan its fuel-cell and plug-in-hybrid tech to Mazda, in exchange for that company's expertise developed through its efficient Skyactiv engines.

British tuner BBR is already hard at work at trying to squeeze more power from the 2016 Mazda MX-5 Miata's 2.0-liter SkyActiv four-cylinder engine. The company thinks that the mill can make around 200 horsepower without even adding any forced induction.

We've dug deep for just about Chris Paukert

Could the "Zoom Zoom" automaker start making hybrids that go "glug glug glug"? Mazda, known for its fuel-efficient Skyactiv engine line, will be the first Japanese automaker to make a diesel-hybrid vehicle for Japan and Europe.

It looks like Toyota is going to have a little more zoom-zoom in the future. The giant Japanese automaker has struck a deal with Mazda to use its Skyactiv engines for the possible replacement to the Yaris. The new subcompact will be built under contract by Mazda at its new factory in Mexico.

Mazda's US sales are down a little bit but the company's fuel economy is almost assuredly up. That's because its fuel-saving Skyactiv drivetrain technology is essentially taking over US vehicles sales. To the tune of about five out of every six vehicles sold, at least.