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Watch what happens inside a rotary engine

Since it looks like Mazda may very well revive the Wankel rotary engine as a range extender for electric cars, there's no better time to become reacquainted with the quirky internal-combustion engine. And there's hardly a better way to become reacquainted than by peering into a running rotary engine, which you can do with the video above. The video comes to us from the YouTube channel Warped Perception. The channel has already shown what happens inside a conventional internal-combustion piston engine by putting a clear cylinder head on top of a flathead engine. This new video shows off the rotary engine by adding a clear side to a tiny model-airplane engine, something that we weren't aware existed and are glad to know about now. Despite the tiny size, the engine is functionally almost exactly like the bigger versions you'll find in Mazdas from about 1967 to 2012. It has intake and exhaust ports on the edges of the rotor housing, and the triangular rotor swings about in a peanut-shaped housing. For maximum effect, jump to right around the 7:40 timestamp. This is the point at which a bit of acetylene is added to the air-fuel mix for a brighter flame. It's at this point that you can really see when the mixture combusts and how the pressure of the flame pushes the rotor to produce rotational motion. Each stage of the video does slow things down to make everything as clear as possible. Even if you already knew how rotary engines worked, it's still fascinating to watch, first because it's something you don't get to see usually, and also because of the engine's elegant simplicity. Related Video: Image Credit: YouTube / Warped Perception Weird Car News Mazda Technology Videos rotary rotary engine

Illinois’ pro-union stance kills bid for Toyota-Mazda plant, report says

Mazda and Toyota are fielding bids from states eager to land its new prize: an all-new $1.6 billion U.S. plant where the Japanese automakers would jointly build electric vehicles and employ around 4,000 workers. Now we can apparently scratch Illinois off the list of contenders. According to Automotive News, the Land of Lincoln has been disqualified due to a lack of shovel-ready sites and the state's lack of a right-to-work law curtailing union membership. Mark Peterson, the president and CEO of economic development agency Intersect Illinois, told the publication he's been informed Illinois is not among the three or four finalists for the facility. It's believed those finalists are all in the South. Peterson said that "many national site consultants charged with making recommendations for corporate relocations and expansions will not even consider a state that is not a right-to-work state. In this case, the three states I am told are still in the running are all right-to-work states." The Midwest may be the ancestral home of U.S. automotive manufacturing, but the South has made major inroads in recent decades, with the likes of Honda, Mercedes-Benz, Nissan and Toyota all opening plants there, among others, thanks to lucrative tax incentives and the absence of labor unions. Recent years have also seen so-called right-to-work laws, which prohibit union dues and membership as a condition of employment in organized workplaces, spread to traditional labor strongholds such as Michigan and Wisconsin. The new joint venture plant, which would start operating in 2021, would be capable of producing 300,000 vehicles a year, with production divided between the two automakers. Mazda and Toyota would also take small stakes in one another as part of the deal. It's expected that at least 15 states have submitted proposals to attract the plant. Expect the Illinois news to trigger a new round of debate over the role of organized labor in the modern economy.Related Video: Image Credit: Reuters Green Plants/Manufacturing Mazda Toyota

Mazda6 Skyactiv-D Racecar ready to bring diesel to Grand-Am

It may not be quite as radical as some of the company's past rotary racers, but the new Mazda6 Skyactiv-D racecar does have a notable powertrain underhood: the automaker's brand-new clean diesel four-cylinder engine.
Three of these new diesel-powered Mazda6 racers will take to the track in the Grand-Am GX class of the upcoming 2013 Rolex 24 at Daytona on January 26, with five drivers on each team. The car you see above, number 70, is sponsored by Mazda's longtime motorsports partner, SpeedSource.
Check out our full gallery of high-res images live from the 2013 Detroit Auto Show above and feel free to read through the related press release from Mazda below.