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It's not a Wankel, but it is installed in a go-kart. LiquidPiston's X Mini engine gets a micro-scale workout in this video.

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This could be an early peek at the Skyactiv-R engine.

Mazda's filing shows a new layout to the exhaust and intake ports of a turbocharged rotary. Maybe the RX-7 is really coming back.

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Mazda's drivetrain and powertrain assistant manager wants the company's revived rotary engine to be turbocharged.

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For the last eight years, a dedicated team of 50 engineers at Mazda have been working with a small budget to bring the rotary engine back.

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Mazda isn't ready to give up on bringing the Wankel back and still has a team working to bring the design up to modern emissions and economy standards. A model using the updated mill isn't currently on the horizon, though.

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Every few months, it seems a rumor crops up about plans from Mazda to revive the rotary engine. Last November, its CEO said the only way another one could happen is if the project was profitable, and then a month later the automaker showed off the Mazda2 RE Range Extender with a 330cc Wankel engine mounted in the rear. Now, Australian auto site Motoring reports that the PHEV may actually make production in the next-gen Mazda2 sometime after it's initial launch.

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We have some very sad news to report, rotor-heads fans: Don't expect a new rotary-powered vehicle anytime soon. This comes straight from Masamichi Kogai, the CEO of Mazda, which is the only company to ever market a commercially successful rotary-powered automobile in the world. The issue, as it has pretty much always been, is environmental.

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There is a special place in our hearts reserved for the Mazda RX-7. Its screaming rotary engine made the '80s and '90s a time of high-revving fun. While Mazda continued the rotary with the four-door RX-8, the two are not the same car, and eventually the latter was phased out.

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Ah, the Wankel. You magnificent, high-reving feat of unorthodox engineering. Your biggest champion, Mazda, may have left you – at least for the moment – but that doesn't mean some mad mechanics can't rally you and a few friends for a high-horsepower party.

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Mark it down, auto enthusiasts. Mazda built its last rotary engine on Friday, June 22. By final, we mean the line that assembled Renesis engines for Mazda's RX-8 sports car was idled, and there are currently no plans to restart its production. Mazda has a long-running history of building Wankel powerplants, and its production of the high-revving engine has seen a few stutters since Mazda put the first dual-rotor Wankel in a production car in 1967. Of course, it's always possible that Mazda

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In the soap opera saga of are they or aren't they still developing a rotary engine, Mazda seems to have indicated the affirmative. According to a translation of a Tweet from Mazda PR posted on a Japanese car blog, a "new model with a next-generation rotary engine" is in development.

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At the end of 2011, the Mazda RX-8 rotary-powered sport coupe/sedan will cease to exist in new-car showrooms. With it, the mass-produced rotary engine will take another hiatus. The original plan was to have the Renesis, the world's only mass-produced rotary, come back maybe as early as 2017 in a new sports car. In fact, we just heard reports that Mazda's rotor-obsessed gearhead engineers were still manning the program, albeit at a reduced pace.

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Fear not, rotaryphiles. According to a report from The Detroit News, Mazda isn't giving up on the rotary engine anytime soon. Though the RX-8 is headed for the production guillotine, Mazda execs have apparently confirmed that engineers are working on a more efficient and more powerful version of the Wankel. While the project was technically back-burnered during the economic downturn, the research wasn't canned outright. That means that there's a chance that the rotary could make a comeback. What

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Mazda Kabura Concept – Click above for high-res image gallery

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Renesis rotary engine in 2009 Mazda RX-8 – Click above for high-res image gallery

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Renesis rotary engine in 2009 Mazda RX-8 – Click above for high-res image gallery

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Mazda isn't the only company out there working on the next-generation rotary engine. According to China Car Times, Chery is also dabbling in Wankel technology. The company isn't so much interested in bringing non-piston love to The People's Republic so much as they are finding a more efficient way to charge the batteries in an extended-range EV. If CCT's intelligence is accurate, the plan is to use an 800cc Wankel as a sort of internal-combustion lifeline so that if an electric car's batteries g

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Mazda isn't the only company out there working on the next-generation rotary engine. According to China Car Times, Chery is also dabbling in Wankel technology. The company isn't so much interested in bringing non-piston love to The People's Republic so much as they are finding a more efficient way to charge the batteries in an extended-range EV. If CCT's intelligence is accurate, the plan is to use an 800cc Wankel as a sort of internal-combustion lifeline so that if an electric car's batteries g

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