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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:

Top Gear recounts the fiery demise of the Mazda Furai

This past September we reported on Top Gear's destruction of the Mazda Furai, one of the finest concept cars to ever grace an auto show stage. It turns out that the Furai, which was burned nearly beyond recognition at the hands of the British magazine, was actually destroyed back in 2008, and that the entire thing had been covered up for five long years.
Now, a few months after publishing that heart-wrenching composite of a half-baked Furai (shown above), the lads at TG have published their account of just what resulted in a priceless concept car being transformed into a smoking hulk on a Suffolk runway. Click over to read the full story about just what happened, along with pictures of the Furai before, during and after the inferno.

2020 Toyota Yaris hatchback could return as a Mazda2 clone

Less than a week ago we got the news that Toyota killed the 2019 Yaris Liftback in the U.S., instead choosing to sell the remaining inventory from 2018. There should be plenty of stock left, too: Car and Driver reports that Toyota sold 1,940 of the tiny hatches last year. The automaker said it would have an announcement about the Yaris at this year's New York Auto Show in April, telling Automobile, " We're working on something new for MY2020." C/D thinks it already knows what's coming, writing, "We assume ... that the new Yaris hatchback ... will be a rebadged Mazda2, like the current Yaris sedan that Mazda builds for Toyota in Mexico." Toyota and Mazda formed a development- and technology-sharing partnership in 2015. As part of the collaboration, we got the Scion iA in 2016, based on the Mazda2 sedan. That four-door became the Toyota Yaris iA when the Scion brand got put in the ground, and then became just the Yaris for 2019. In spite of Americans' well-publicized aversion to sedans, the trunked Yaris sold 25,269 units last year. Meanwhile, the Yaris hatch, built at a Toyota factory in France, has carried on basically untouched since 2013 — with a four-speed automatic, even — helping to explain its slow take-rate. If the Yaris five-door moves to the Mazda2 platform, we expect it to follow the same formula as the sedan. That means a 1.5-liter Skyactiv-G four-cylinder with 106 horsepower and 103 pound-feet of torque. That's the same output as the Toyota NR engine in the current hatch, but from a better, more modern engine. Transmission options would include a six-speed manual as standard on the L and LE trims. For 2019, Toyota added an XLE trim to the sedan that comes with a six-speed automatic. Assuming all comes to pass, the new Yaris five-door would be built at Mazda's Mexico plant alongside the sedan. But we'll have to wait until New York to know for sure. Related Video: