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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

Mazdaspeed3 concept tipped for Frankfurt debut

The last quarter of 2015 could be a big one for Mazda as a report has emerged from Australia claiming that the company will come to the Frankfurt Motor Show in September with a near-production concept of the third-generation Mazdaspeed3, while a second-generation CX-9 will be shown a few months later in Los Angeles. Motoring.com.au ran the initial report, and although the news seems plausible, the outlet doesn't provide sources for either piece of news. Likewise, our friends at Mazda USA refused to comment on "speculation." Speculation it may be, but it's surely tantalizing considering the recent popularity of both the hot hatch and three-row crossover segments. According to the Aussies, the concept Speed3 will quickly evolve into a production model, which will launch alongside a mid-cycle refresh for the current 3. A turbocharged 2.5-liter will spit out 295 horsepower, and could have all-wheel drive. Even if only the front axle is doing the work, the MS3 will easily be able to stand toe-to-toe with hotter half of the segment based on output alone. As for the more mundane offerings, Motoring reports the long-in-the-tooth CX-9 will get a replacement in LA, although it doesn't offer much in the way of details beyond that. It should be interesting to see how the company's Skyactiv philosophy will be implemented on such a large vehicle. Perhaps the biggest surprise from the Australian report, though, are the outlet's reports on the CX-7, which will return sporting a third row of seats after its larger sibling debuts. That'd give Mazda a versatile lineup of four crossovers, with the sub-compact CX-3, the compact CX-5, the midsize, seven-passenger CX-7 and the fullsize CX-9. As we weren't able to confirm any of this with Mazda, we'd still warn that this news should be ingested with grains of salt. Still, it looks like the company could be set to make some waves in the first two shows of the upcoming auto show season.

2016 Mazda CX-3 First Drive

If there's any doubt in your mind about the importance of B-segment crossovers, consider this: our review of the 2016 Mazda CX-3 arrives on your screen less than 24 hours after our first test of the 2016 Honda HR-V. Both of these vehicles are hugely important entries for their respective automakers. And while they take a similar shape and will compete head to head, the truth is, they're very different products. The HR-V is a knockout because of its excellent packaging and added versatility over Honda's own Fit and Civic. It's a wholly competent product, and we imagine it'll be one of, if not the best-selling vehicle in the class. In terms of being desirable for customers, it checks all the necessary boxes: frugal, functional, efficient, and affordable. Mazda takes a similar approach, but focuses instead on its key strength of offering cars that are great to drive, and look damn good. What's more, the CX-3 won't have to share showroom space as the HR-V does with the Fit – the all-new Mazda2 isn't slated for the US right now. Instead, the new CUV will serve as an entry point into the brand. Because of this, Mazda is betting big on the CX-3. That all starts with a product that's appealing to the eye. Design director Derek Jenkins says Mazda "didn't want to do the funky route" with its compact CUV – a nudge to the Nissan Juke and Fiat 500X, right there. Instead, the CX-3 uses the Kodo design language that Mazda has perfected since its production debut on the CX-5 in 2012. Across the board, the company's products look incredible, and the CX-3 is right at home amongst Mazda's latest beauties. Notice the long hood with a flowing character line that runs over the front fender and down the body side, chiseled off at the end with tight rear proportions and a small overhang. Huge arches draw focus to the premium 18-inch wheels found on our Grand Touring CX-3, but swallow up the 16-inch rollers used on lesser models. The glass area is kept to a minimum, but visibility from inside is still quite good. Details like the LED accents in the head- and taillamps look premium and aggressive. From all angles, this is an attractive crossover. It's a bold, dynamic entry in a class filled with cutesy, oddball, and bland designs. Underneath the CX-3 is the Skyactiv chassis found in the new Mazda2. At 168.3 inches long, 69.6 inches wide, and 60.7 inches tall, the CX-3 is smaller than the Mazda3 in every dimension except height.