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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.

Japanese automakers ramping production for renewed American sales

The 2011 earthquake and tsunami that struck Japan took quite the toll on the automotive industry in that nation. Not content to lean on that tragedy as excuse for slagging sales, the Japanese automakers are planning on a major production expansion in North America. The aim is to reclaim the market share lost from the Tsunami-based dip, and overcome a dollar/yen exchange rate that makes exporting to America unprofitable.
Following the Tsunami, Japanese automakers ramped up production in their North American facilities to compensate, but according to Automotive News, Nissan, Honda and others have all reported plans for still-further increased production in the year ahead. As part of this ramp-up, Mazda will open a facility in Salamnca, Mexico before March of 2014. Part of that increase in output is 50,000 units of a Toyota-badged compact car, which Mazda will produce.
Other Mexican production facilities opening include a Honda plant, which will open in Spring 2014 in Celaya, and a Nissan plant, set to open later this year in Aguascalientes. Nissan also said that it will need another plant in North America within the next five years. According to Nissan Boss Carlos Ghosn, the company aims to raise its stake in the US market from 8 percent to 10, and adding production will help achieve that goal. Even Mitsubishi is aiming to boost production at its Normal, Illinois plant. Production of the Outlander Sport is currently at 50,000, which Mitsubishi wants to raise to 70,000.

Mazda2 production fires up in Mexico

Mazda has officially kicked off production of the next-generation Mazda2 at the company's new factory in Salamanca, Mexico. Alongside the auto assembly plant, operations have also commenced at the facility's engine machining factory.
"With the start of production of the all-new Mazda2, operations underway at the engine machining plant, and an increase in our annual production capacity, we now have an even stronger production framework capable of supplying global markets with Skyactiv products of the same high quality level as those made in Japan," Mazda de Mexico Vehicle Operation's President Keishi Egawa said in a statement. "At the same time, we are pleased to be able to make a contribution to Mexico's further economic growth."
MMVO joins Mazda's Hofu Plant in Japan and the Auto Alliance factory in Thailand, which commenced Mazda2 production in July and September, respectively.