1990 Mazda Miata Base Convertible 2-door 1.6l on 2040-cars

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Mazda hard at work on Skyactiv 2 engine technology

As Mazda continues the current rollout of its still-new Skyactiv technology, the automaker is already looking at improving its family of engines for even better fuel economy and emissions reductions. Automotive News reports that with stricter fuel economy and emissions regulations planned for 2020 and 2025 in Europe, Mazda will likely release engines with next-generation Skyactiv 2 technology by the end of this decade, and Skyactiv 3 units just five years later.
The latter is expected to focus on improved engine cooling and lessening energy losses, but the big news in AN's report is that the next-gen Skyactiv 2 engines will use Homogeneous Charge Compression Ignition, or HCCI. This type of ignition is very similar to how a diesel engine operates (with high compression and using the compression stroke for fuel combustion rather than spark plugs), a method said to provide a cleaner and more efficient fuel burn - to the tune of a 30-percent improvement in fuel economy compared to current Skyactiv engines. Other automakers, including Hyundai, have already announced they are developing HCCI powerplants with similar technology and characteristics, so Mazda likely won't be a lone wolf here.
Equipped with HCCI technology, Mazda figures to be able to compete with larger automakers in terms of fuel economy and emissions without resorting to hybrid powertrains, continuously variable transmissions or automatics relying on more forward gears (eight or more) for optimal efficiency. Some of the challenges of HCCI, according to AN, include the need for better engine cooling, risk of misfire at high and low rpm and uneven engine performance based on fuel properties.

Mazda's new turbo four fits in both the 6 and the 3

Despite the size differences, the Mazda CX-9 shares a lot with its smaller car-based siblings, the Mazda6 and Mazda3. That could allow Mazda to slot its full-sizer's new 2.5-liter, turbocharged four-cylinder engine under the hood of its smaller offerings. Pardon us while we do a happy dance. "[The 2.5-liter turbo] fits in a lot of our cars, and where we're actually going to put it is another question," Mazda North America vehicle development engineer Dave Coleman told Australia's Car Advice. Coleman specified that the turbocharged engine will fit in all the same applications that can accommodate the company's 2.5-liter gas and diesel engines. "Basically, that big space we used for the bundle of snakes exhaust manifold, the turbo is in that space too. They're all packaged to occupy the same space. It's exactly the same clearance as the exhaust manifold of the other engines." This kind of logic – if Engine A is the same size as Engine B, then both should fit in Car C – is what's lead us to imagine a turbocharged Mazda6 since the new engine was announced. In short, it's great news. Mazda's 2.5-liter turbo is a hell of an engine in the CX-9, and it's hard to imagine it'd be worse in a lighter vehicle. But just because it works from an engineering standpoint doesn't mean it's going to happen. At least, not soon. "It fits. I'm not a product planner so I don't get to make that call," Coleman told Car Advice. "It's up to the product planners to decide what they're going to put it in." The most obvious application for a turbocharged engine in the 3 or 6 is as a reborn Mazdaspeed model. But don't get too excited – Coleman said Mazda hasn't even gotten as far as building an engineering prototype with this engine. We're still firmly at the theoretical stage. And that's bad news, because it gels with what we've been reporting – that Mazda will wait a generation for future Mazdaspeed models. We just stopped doing our happy dance. Related Video:

Autoblog readers meet the 2016 Mazda MX-5 Miata [w/video]

Mazda dropped off a 2016 MX-5 Miata at our office this week with only two stipulations: don't break it, and don't talk about driving impressions until 3:01 AM Eastern on Monday, June 1. Easy enough. But rather than hold our notes until the embargo lifts, we decided to do something different. By now, you've no doubt read all there is to know about the 2016 Miata, including our review of the Japanese-spec car with the 1.5-liter engine that isn't coming to North America. You know it's smaller than the outgoing NC model. And you know that, at 2,332 pounds, it's nearly as light as the original. But what you, and we, didn't know, is what Miata owners think about the 2016 model. The MX-5 group is incredibly enthusiastic, and they love their cars. Hell, they love each other's cars. So we gave them an opportunity to not only get together, but to get an up-close, informal look at the ND Miata outside of an auto show, several months before it officially goes on sale. Here's what we did. Cars And Coneys Anyone who's familiar with the Woodward Dream Cruise in metro Detroit has no doubt heard of Athens Coney Island in Royal Oak, MI. It's an iconic place, known for its top-notch coney dogs, quick service, and the fact that, on pretty much any warm-weather weekend, you can find cool cars in the parking lot. We called the folks at Athens, told them about our Miata meet-up, and they were immediately on board with coneys, soda, and coffee for our gathering. We first published our meet-up info late last week, and sent the details out on our social media channels, as well. But without any formal RSVP system, we had no idea how many people would show up. And since Mother Nature decided to provide us with gray skies and chilly temperatures, we figured a lot of would-be attendees opted to bail at the last minute. Needless to say, we were surprised to see several Miatas already lined up in the Athens parking lot when we arrived with the ND at 4:40 PM, 20 minutes before the listed 5:00 start time. No one kept a formal count, but our best guess is that something like 50 or 60 cars showed up over the course of three hours. Some folks stayed the whole time, some people only stopped by for a quick cup of coffee. A couple people drove long distances to attend – a few Miatas hailing from southern Ohio, and many from western Michigan. We had a huge mix of cars, too.