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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

2016 Mazda MX-5 Miata firsthand impressions and notebook scribblings

In a temporarily repurposed airport hanger in Monterey, CA, the world caught its first glimpse of the 2016 Mazda MX-5 Miata tonight, and I was fortunate enough to attend in person along with my fellow auto media colleagues, Mazda execs, a couple hundred Miata devotees and, oddly, a fair number of Duran Duran fans. The klieg lights have dimmed, Simon Le Bon is no longer ringing in my ears, and I'm left to ponder what I've seen. I've scavenged my notes - and my Twitter feed - to give you some details and brief thoughts.
Fair Warning: I can't claim to be completely impartial (I own a second-generation NB and consider the Miata franchise to be one of but a few sacrosanct franchises in modern motoring), but I will share my honest first impressions of the new car, both good and bad.
Here are my notes:

Mazda CX-5 diesels get discounts up to $10,000 off MSRP

When Mazda positioned its long-awaited and oft-delayed CX-5 diesel crossover as the “premium” option in the CX-5 trim structure, we were skeptical. After driving one last fall with a $42,045 sticker price, our eyebrows furrowed even deeper. Today, to nobodyÂ’s surprise, Mazda dealers are slapping massive discounts on the Skyactiv-D. CarsDirect initially reported on the discounts, pointing out that some dealers are slashing prices by $10,000. We took a spin through Autotrader to see what was out there, and the results were shocking. There were pages of CX-5 diesels with prices in the low-to-mid $30,000 range. We asked Mazda what kind of incentives it was currently offering on the 2019 CX-5 diesel. Since December, Mazda has offered a $5,000 cash rebate, alongside a 2.9 percent APR for 60 months. However, the other several thousand dollars worth of discounts weÂ’re seeing listed — as much as $5,000 more — are not being accounted for by Mazda.  Just as CarsDirect found, the largest discounts we could find on the web are for a cool $10,000, bringing the price down to $32,045. At that price, youÂ’re looking at a 23.8 percent discount. ThatÂ’s a discount of nearly a quarter(!) of the carÂ’s original asking price. We thought the Skyactiv-D was overpriced originally, but at this price, weÂ’d strongly consider it as the CX-5 to buy. Since the diesel is only offered in the top-of-the-line Signature trim, it has every gizmo and gadget Mazda offers in addition to the most premium interior materials. ItÂ’s also offered in all-wheel drive only, leaving every box with a checkmark in it.  Compared to the gas-engined CX-5 Signature that starts at $38,100 for the 2020 model year, these diesels are a steal. In fact, this price hierarchy makes a lot more sense than the way Mazda had it organized in the first place. The more powerful 2.5-liter turbocharged four-cylinder in the gas-engined Signature can easily be marketed as the most “premium” option in the CX-5 lineup since itÂ’s the fastest and most enjoyable to drive. Moving the slower diesel with the same equipment below it on the food chain sounds like the right move to us. At around $33,000-$35,000, the diesel isnÂ’t such a bad buy anymore. Fuel economy still isnÂ’t where weÂ’d like it to be, but as we opined in our First Drive review, itÂ’s still a wonderfully pleasant car to drive. Related Video: