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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

Modded budget Mazda Miata takes on new Porsche Boxster in more challenges

Earlier this month, our friends across the pond at Auto Express released the first in a two-video series that would see them try and build up a second-generation Mazda MX-5 Miata that could best a standard Porsche Boxster around the track. While that first video detailed the mods to the MX-5 - a supercharger, some suspension upgrades and a new set of super-sticky rubber being chief among them - and set baseline lap times for the stock car, today, we have the results of the 5,000-pound ($8,200) upgrade job.
Of course, we aren't going to spoil those for you. You'll need to watch the full video, which recaps the upgrades before digging into a comparison of both straight-line-speed differences between the 2.7-liter Porsche Boxster and blown Miata, as well as their behavior and lap times on the track.
Take a look and let us know what you think in Comments.

2016 Mazda MX-5 Miata First Drive [w/video]

Hypothetically speaking, if you blindfolded me, put me in the car pictured above, and told me to hit the road, it would have taken me maybe two minutes to figure out that I was driving the 2016 Mazda MX-5 Miata. There are just certain facets about Miata driving that have been baked into every generation of Mazda's roadster, and it makes for a symbiotic relationship between car and driver that's truly unique. Sure, I could rattle off a list of cars that come close to offering the same sort of experience, but they just can't quite capture the same intrinsic Miata magic. Mazda knows its Miata is an incredibly special machine. Listening to the company's engineers and designers talk about the development of this fourth-generation ND model is fascinating. The attention to detail is astonishing, and every single person involved in the Miata program knows that the most important goal is to keep this car as true to its predecessors' ethos as possible. It cannot just be a great convertible, or even a great Mazda – it has to be a great MX-5 Miata. But the company did not just want to improve upon the third-generation NC Miata, which has been around since 2006. They wanted to tie the ND Miata's roots back to the original NA from 1989. Back in '89, the Miata was a less-powerful, 1.6-liter model with 115 horsepower and 100 pound-feet of torque. Mazda's team said they are proud of every version of the MX-5, but it's this specific, first-generation model that the company calls the "most right" – the most true to the idea of what a Miata ought to be. So that's why, before being allowed to attack the winding roads of the Spanish countryside in the 2016 MX-5, Mazda wanted me to spend some time with a cherry example of the original NA Miata: a Mariner Blue darling that, even with some 239,000 kilometers on its clock, still felt absolutely impeccable from behind the wheel. Light, responsive, and perfectly balanced, it was the original embodiment of the harmony between driver and car that Mazda wanted in every Miata. Mazda executives said they felt the first Miata was also the right size. So they chopped off three inches on the ND compared with the NC, and put it on a wheelbase that's been reduced by six-tenths of an inch. In fact, these dimensions mean the new Miata is more than two inches shorter in length than the original, and only two-tenths of an inch taller. In this day and age of ever-expanding waistlines and footprints, it's a remarkable achievement.