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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

Jerry Seinfeld and Margaret Cho get coffee in a Mazda Cosmo Sport

The new season of Comedians in Cars Getting Coffee has already reached its second episode, imaginatively titled, You Can Go Cho Again. If it's classic Mazdas you like, you're in for a treat. In this episode, Jerry Seinfeld plays up the You Only Live Twice vibe you get from the 1967 Mazda Cosmo Sport, as it's suitably similar to the Toyota 2000GT seen it that film – in color, at least. Unlike the Yamaha twin cam six Toyota, the little Mazda is propelled by a characteristic rotary engine, which in Jerry's opinion is similarly eccentric as the episode guest Margaret Cho. The right-hand-drive Cosmo Sport is an unicorn in the States, and it's in absolutely perfect condition right down to the houndstooth upholstery. Check out the video below, or head on over to Crackle for this video along with all the previous episodes from seasons past. News Source: Crackle Celebrities Mazda Classics Videos jerry seinfeld comedians in cars getting coffee

2016 Mazda CX-9 caught on video

We already know from earlier spy shots that the second-generation Mazda CX-9 is advancing in development, but here's an opportunity to actually see the crossover on the road. The video shows the CX-9's rear, but wait 50 seconds for a good look at it in profile and from the front. The CX-9 is no longer wearing the same camouflage from the last spy photos, but this time it has more cladding to hide the lines. Even with the obfuscation, you can still get a sense of the general shape. The CUV largely looks like a stretched version of the CX-5, which is a great place to start. Rumors suggest the new CX-9 will debut in November at the 2015 Los Angeles Auto Show and to launch in 2016 for the 2017 model year. Power is tipped to come from a turbocharged, 2.5-liter Skyactiv four-cylinder, and all-wheel drive is expected to be available. Related Video: