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Weekly Recap: Mazda's rotary revival ignites Tokyo Motor Show

Forty-eight years ago Mazda pioneered rotary engines in the Cosmo Sport. Mazda then honed the technology, won with it on the racetrack, and made it one of its signature features. If you're an enthusiast, rotary was a reason you like Mazda. It's a great part of the company's past. But until this week, that's exactly what we thought it was. History. That all changed with the reveal of the RX-Vision concept at the Tokyo Motor Show, which reignited the passions of the Mazda faithful. Suddenly, rotary was no longer a relic. The rotary concept shown in Japan was a front-engine, rear-wheel-drive sports car wrapped in the company's latest Kodo design language. It's powered by a Skyactiv-R unit (R for rotary), though specs were not disclosed. Mass production is "currently on hold," Mazda said, maintaining it never stopped development of rotary technology, even after the demise of the RX-8. Beyond that, we know nothing, other than the optimistic statement Mazda offered that: the "RX-Vision represents a vision of the future that Mazda hopes to one day make into reality." Put simply: we agree. OTHER NEWS & NOTES: Subaru previews next-gen Impreza While the Mazda concept was the headliner from Tokyo, Subaru's Impreza design study also stood out. The five-door concept is a signpost for the look of next-generation Impreza. It blends sportiness with functionality, and it's wrapped in a striking shade of 'high-luminance silver.' The fenders are flared to signal Subaru's all-wheel-drive capability, and the front has futuristic headlights that look like something from an Audi E-Tron concept. While most of this will be toned down in production, the concept suggests an elevated style for the Impreza, which is due as a 2017 model. Porsche adds potent GTS model to 2017 Macan line Porsche is giving the Macan crossover the GTS treatment, which will start at $68,195 when it goes on sale in March. GTS translates to more power, a sportier suspension, and interior and exterior design cues that sharpen the looks and reflexes of one of the most athletic SUVs on the market. Porsche recalibrated the 3.0-liter twin-turbo V6 from the Macan S to make 360 hp and 369 lb-ft, (up from 340 hp and 339 lb-ft in the S). It teams with a seven-speed PDK gearbox and all-wheel drive. An air suspension is standard. The body features a slew of black accents, and the standard 20-inch RS Spyder wheels are done up in a shade of satin black. The cabin gets leather, Alcantara, and GTS logos.

Mazda reportedly to be fully electric and hybrid by 2030s

TOKYO - Mazda plans to make all of its vehicles electric-based, including gasoline hybrids, by the early 2030s, Japanese media reported on Friday, as more automakers shift strategies to meet tightening global emission regulations. The Japanese automaker plans to use electric motors in all of its models by that time, Kyodo News reported, without citing sources. A Mazda spokeswoman declined to comment on the report. At the moment, Mazda's lineup does not include any all-battery electric vehicles. It does offer a hybrid version of the Mazda3, but it's only available in Japan. The company has also experimented with a range-extended electric Mazda2, which used a tiny rotary engine to produce electricity. The move is consistent with the company's Sustainable Zoom-Zoom 2030 plan, which lays out the launch of various green powertrains. Among them are electrified models coming out in 2019. That same year will include the launch of the company's new SkyActiv-X engine, a compression ignition gasoline engine, which promises fuel efficiency improvement of 20- to 30 percent over comparable spark-ignition gas engines. This engine could hypothetically be combined with hybrid technology for even greater gains in efficiency, or even performance if the company so chooses. Mazda's recent partnership with Toyota also means Mazda could be able to quickly develop hybrids and electrics using Toyota's existing technology. This news that Mazda will begin primarily focusing on electric powertrains does seem contrary to Mazda CEO Masamichi Kogai's statement that its gasoline, diesel and electric vehicle technologies would "co-exist" in the future. Mazda on Thursday also launched a new CX-8 three-row crossover for the Japanese market, which is currently only available with a diesel engine. The company also plans to finally introduce a diesel engine to the United States in the CX-5 crossover. Assuming that Mazda's move to fully electrified vehicles is true, it will join a couple of other automakers planning to do the same. Volvo Car Group in July said that all of its new models from 2019 would feature some amount of electrification, and Jaguar-Land Rover will follow suit starting in 2020. Reporting by Naomi Tajitsu. Editing by Sherry Jacob-Phillips. Additional words from Joel Stocksdale.Related Video: Image Credit: Toru Hanai / Reuters Green Mazda Electric Future Vehicles Hybrid mazda hybrid mazda electric car

How Mazda got Skyactiv-X to work is incredible

"Take everything you know about engines and turn it around," Mazda North America Vehicle Development Engineer Dave Coleman says, patiently and with a look of benevolent pity, as he's quizzed about the particulars of the company's new engine. The Skyactiv-X engine is enigmatic — and deceptively simple in operation. And the bottom line for American consumers is that they'll be able to buy a car (or crossover; we don't know yet what vehicle will first get it) by late 2019 that provides diesel-like fuel economy but runs on regular old gasoline. In between diesel and spark ignition, but it's neither To truly understand it, you have to dive into the contradictions. Take that regular old gasoline: Contrary to common sense, the lower the octane, the better it works. In the lab, the Skyactiv-X engine loves 80 octane. The lowest Americans get is 87, so the engine is tuned for that octane. Go higher and you lose some low-end torque. Coleman was right. It's hard to wrap your head around an engine that thrives just at the point when most gas engines would aggressively self-destruct. It uses a supercharger to pump additional air — but not additional fuel. It uses spark plugs to start a combustion cycle that normally doesn't need a spark. And, quixotically, it's not displacing Mazda's own American-market diesel engine, currently languishing in a seemingly endless hell of regulatory approval. More bizarre: Mazda is a tiny automaker facing real existential headwinds, and gasoline compression ignition is a massive challenge. GM and Hyundai announced compression ignition, or HCCI, projects (full name, homogeneous charge compression ignition) to great fanfare, but they never amounted to a production hill of beans, crippled by reliability issues or horrible vibrations. Worse, they only worked at an unusably narrow range — low RPMs and low loads. HCCI research improved direct-injection gas and diesel engine technologies for these companies, but HCCI itself remains untamed. The benefits of lean combustion Why even try to tame HCCI? The answer is much better fuel economy and lower emissions. Less burned carbon-based fuel, less carbon dioxide released. That's simple. But there are some thermodynamic reasons for the lean combustion you can achieve with compression ignition that are worth explaining. The ideal amount of fuel for a conventional engine to burn is about a 14:1 air-to-fuel ratio. That lets every molecule burn nicely, in theory.