Mazda Cx-9 Fwd 4dr Grand Touring New Suv Automatic Gasoline 3.7l V6 Cyl Engine M on 2040-cars

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Mazda's next-gen SkyActiv engines will drop spark plugs in favor of high compression

Homogeneous charge compression ignition, or HCCI, is the black art of internal combustion engines that aims to produce diesel-like fuel efficiency for the cost of gasoline. Although some of its competitors have developed and subsequently given up on the tech, Mazda confirmed that the next-generation of SkyActiv engines will employ HCCI technology, improving fuel economy by 30 percent and at the same time reducing exhaust emissions. According to Nikkei, a new SkyActiv family of engines is set to debut under the hood of the next-gen Mazda3 sometime in 2018 before making its way into other vehicles. In simple terms, an engine that uses HCCI burns the air/fuel mix using pressure instead of with spark plugs, just like a diesel. At 14:1, Mazda's gasoline engines already have some of the highest compression ratios out there, but a move to HCCI means cranking up the compression to 18:1. While the tech sounds relatively straightforward, using HCCI means dealing with a number of side issues. It's one of those "on paper" ideas that compounds problems when put into practice. Heat, revs, and fuel must all be carefully managed as gasoline doesn't burn the same way as diesel. Mazda is mum on details, but the automaker seems confident that the issues have been sorted. If the new engines do indeed make it to market with HCCI, Mazda will have out-engineered GM, Daimler, and Hyundai, all of which have tried and failed to develop HCCI engines in a cost-effective package. With the market moving towards electrification, it's interesting to see Mazda still focusing so heavily on traditional internal combustion gasoline engines. It's an indication of where they see the market heading for the next few years. Although the automaker has been hesitant to move forward with hybrid and electric powertrains, Nikkei also reports that Mazda will begin mass production of EVs in 2019. Related Video:

We go Unplugged to celebrate Mazda Miata Month

Chances are good that you, loyal Autoblog reader, have long since chosen to follow us on Twitter and 'like' us on Facebook. (If you haven't, feel free to take a second and do so right now.) Anyway, if you're one of our social media posse, you might have already heard that we're smack dab in the middle of Miata Month. We've gotten Mazda to loan us a couple of MX-5 Miatas, allowing us to say a protracted, tear-filled goodbye to the current generation (NC) of the beloved roadster, just before it exits stage right and ushers in the next generation.
You'll see a few more Miata Month items here on Autoblog after we've said our final farewell, but we absolutely wanted to make sure we created some great video evidence of our month, as well. Right down below, then, in its unfiltered-audio splendor, is the Autoblog Unplugged version of the 2015 Mazda MX-5 Miata PRHT. Your author had a pretty great time wringing out the roadster for the creation of our short vid, and we really hope you dig listening along.

Next Mazdaspeed3 could look this good

Mazda showed off its brand-new 2014 Mazda3 at an event in New York City earlier this week, and we have to say, at first blush, we're pretty impressed. It looks fantastic - like a smaller, hatch'd version of the already sleek Mazda6 sedan that went on sale earlier this year. And with a 200-pound weight reduction, efficient Skyactiv gasoline engines underhood and Mazda's usual focus on driving dynamics above all, we're willing to bet that the new Three will be a pretty decent steer.
Of course, being enthusiasts, we're already setting our sights on the next-generation Mazdaspeed3, rendered here by artist Theo Chin. To our eyes, it's not a very imaginative transformation, but is likely a spot-on rendering for what the next car will look like. And it's really, really hot.
While Mazda hasn't exactly confirmed that the new Speed3 will be coming, sources within the automaker have indicated that a third-generation version of the MS3 is under development. Thing is, the Japanese automaker wants to give the standard Mazda3 some time to grow in the market, so we might not see the new Speed3 until something like 2016, with a possible diesel version to arrive before then.