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Mazda Skyactiv-X Review | The revolution begins with a squeeze-bang

The matte black Skyactiv-X prototype looks like a rough Mazda3, perhaps reconstructed after a bad wreck by an over-enthusiastic owner of a spot welder and lots of gaffers' tape. Ribbed ducts poke out of the dash sending two breaths of conditioned air to no one in particular. Even its revolutionary engine, the thing we're here to experience, is entombed in a massive, nondescript cover to mask its unseemly noises. It's a wild, strange way to meet a very unconventional vehicle that promises diesel-like fuel economy, a wide torque band, and an exotic method for burning less gas than ever before. It takes a few hours for Mazda's engineers to explain the fundamental principles of operation. For more detail, read our Skyactiv-X Spark Controlled Compression Ignition explainer, but here's a very brief overview. Skyactiv-X marries some traditional gasoline engine characteristics with a novel form of compression ignition called SPCCI. The key for Skyactiv-X is to use very high compression in the cylinder and an extremely lean fuel-air mixture. Squeezed right to the cusp of getting hot enough to blow up all on its own (which is very hard to predict), a squirt of extra gas and a spark interject to cross that compression-ignition threshold in a controlled and predictable manner. See the animation below: That takes a few essential components to get just right. One is a massive amount of computer processing power and some pressure sensors in the individual cylinders, because the ambient conditions change how and when these things happen. Skyactiv-X uses a clutched supercharger to pump in additional air when needed to nail the mixture precisely, and high-pressure injectors to get the low ratios of fuel to disperse properly in the chamber. And since it operates like a conventional gasoline engine sometimes, it uses valve timing to lower the very high compression ratio so it doesn't reach combustion ignition in that mode. In practice, the Skyactiv-X runs in compression ignition mode most of the time. In practical terms, that means it drives like a torquey gasoline Skyactiv engine. The torque curve is broad and flat — diesel-like in that respect. That also means it can get away with using a six-speed transmission and a lower final drive for better response. There's enough grunt and economy together that Mazda can let the engine spin faster — at 60 mph, it's running at roughly 1,000 more RPM than a similar gas engine, with greater efficiency.

The 2017 Mazda CX-5 is new, and oh so very red

After examining the teaser photo and poring over spy photos, we knew that the 2017 Mazda CX-5 would adopt some design features from the larger CX-9 and Chinese-only CX-4. What we didn't know, though, is that the CX-5 would look like a miniature version of the CX-9. From the outside it's obvious the design is all new. The front of the SUV looks nearly identical to that of the CX-9's. Gone is the cutesy, roundish face in favor of a more angular theme. The headlights are slimmer, while the grille ditches the horizontal bars for a mesh pattern. Mazda calls the design theme Kodo - soul of motion, and the original 2013 CX-5 was the first production model under this mantra. View 12 Photos The changes at the back are less drastic than on the CX-5's new beak. The black trim that underlines the rear fascia is less prominent and the taillights looks leaner, but it's harder to tell the differences between the old and new model. Mazda says the CX-5 will be available with two engines here: the Skyactiv 2.5-liter gasoline engine and the Skyactiv-D 2.2-liter diesel (the Skyactive-D 2.0-liter, currently only used on Sport models, has been dropped for our market). We don't have specifics on power and torque yet, but in the old CX-5 (and current Mazda 3) the 2.5-liter four-cylinder generates 184 horsepower, while the diesel makes 173 hp and 310 pound-feet of torque. We expect front- and all-wheel-drive options, and of course we're hoping that the six-speed manual (previously on the base, front-drive model only) stays around as an alternative to the six-speed automatic. The interior follows the template of recent Mazdas, with the infotainment screen sitting on top of the dashboard with a control knob located aft of the shift lever. We'll have more information on the 2017 CX-5 at the vehicle's debut later today at the 2016 Los Angeles Auto Show. Related Video:

2019 Mazda CX-9 gets Apple CarPlay, Android Auto, slightly higher price

Now that Mazda finally launched Apple CarPlay and Android Auto in the 2018 Mazda6, the company isn't wasting time proliferating the infotainment upgrade to the rest of the lineup. The next on the list is the 2019 Mazda CX-9 large family crossover SUV. It's standard on Touring, Grand Touring, and Signature trims. But if you choose to go with the most affordable Sport trim, it's an option. Up-to-date infotainment isn't the only upgrade to the new CX-9. Every version receives thicker floor mats and a thicker headliner meant to further reduce the amount of noise that enters the cabin. The transmission is also retuned, and Mazda says the new tuning is meant to provide a smoother, quieter driving experience. We'll be interested to see how effective it is the next time we have a CX-9 in the office. Each individual trim level also gets some new options and features. The base Sport trim has a Sport Package available that adds heated front seats, a power driver's seat, heated mirrors, lane-keep assist and departure warning, adaptive cruise control and automatic emergency braking. The package rings in at $1,290. The Touring trim gets the fewest new features with its only new addition, besides the infotainment, being a frameless rearview mirror. The Grand Touring trim receives the 7-inch screen in the instrument panel also found in the Mazda6, along with new power side mirrors and a 360-degree camera system. The top-level Signature trim gets new badges, rosewood interior trim, and accent lighting in the grille and around the shifter. With all these new features come new prices, which are naturally higher than last year's. The smallest price increase is between base Sport models. The new one is just $150 more than the old one. The largest increase comes with the Signature trim, which now costs $1,050 more than the 2018 model. You can see the entire price list and changes below. Trim 2019 2018 Sport (FWD) $33,275 $33,125 Touring (FWD) $36,325 $35,955 Grand Touring (FWD) $41,835 $41,465 Signature (AWD-only) $46,360 $45,310 AWD Option (Sport-Grand Touring) $1,800 $1,800 Related Video: