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2019 Mazda3 shows off factory bodykit, Miata gets a hardtop at Tokyo Auto Salon

The 2019 Mazda3 wasn't exactly lacking in the sporty style department when it was shown last month in L.A. But everyone, including Mazda, knows that doesn't mean it can't be even sportier. As such, the company is showing off a version of the new compact hatchback at Tokyo Auto Salon, a modified car and aftermarket parts show, with a body kit. It's a subtle one, consisting of a black front lip spoiler, black side skirts, and a longer, slightly upturned rear spoiler. Its low-key design fits in well with the Mazda3's taut, clean lines, and it makes the car look lower and more purposeful. The Mazda3 isn't the only car getting some love at the Tokyo Auto Salon. The company will display an MX-5 Miata with a removable hardtop made of carbon fiber. Now, you may remember that Mazda does offer a hardtop, but just for racing drivers. That top is a bit odd looking with a really high rear-end to clear motorsports-spec roll bars and cages. This top follows the lines of the roadster's soft top, looking much more sleek. Neither sets of parts here have been announced for production, but we wouldn't be surprised to see them show up as Mazda accessories. The Mazda3 body kit in particular seems a shoe-in, since the previous generation Mazda3 had a very similar appearance package available. The Miata top certainly seems as though it was designed with regular consumers in mind. Its future is less certain, though. For one thing, Mazda can point to the Miata RF if you want a solid roof. Then again, Mazda still offered a removable hardtop for conventional Miata roadsters even after the original power-retractable hardtop model was introduced. If it does come to market, though, expect it to be made from more affordable fiberglass and be painted in factory colors. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

How Mazda got Skyactiv-X to work is incredible

"Take everything you know about engines and turn it around," Mazda North America Vehicle Development Engineer Dave Coleman says, patiently and with a look of benevolent pity, as he's quizzed about the particulars of the company's new engine. The Skyactiv-X engine is enigmatic — and deceptively simple in operation. And the bottom line for American consumers is that they'll be able to buy a car (or crossover; we don't know yet what vehicle will first get it) by late 2019 that provides diesel-like fuel economy but runs on regular old gasoline. In between diesel and spark ignition, but it's neither To truly understand it, you have to dive into the contradictions. Take that regular old gasoline: Contrary to common sense, the lower the octane, the better it works. In the lab, the Skyactiv-X engine loves 80 octane. The lowest Americans get is 87, so the engine is tuned for that octane. Go higher and you lose some low-end torque. Coleman was right. It's hard to wrap your head around an engine that thrives just at the point when most gas engines would aggressively self-destruct. It uses a supercharger to pump additional air — but not additional fuel. It uses spark plugs to start a combustion cycle that normally doesn't need a spark. And, quixotically, it's not displacing Mazda's own American-market diesel engine, currently languishing in a seemingly endless hell of regulatory approval. More bizarre: Mazda is a tiny automaker facing real existential headwinds, and gasoline compression ignition is a massive challenge. GM and Hyundai announced compression ignition, or HCCI, projects (full name, homogeneous charge compression ignition) to great fanfare, but they never amounted to a production hill of beans, crippled by reliability issues or horrible vibrations. Worse, they only worked at an unusably narrow range — low RPMs and low loads. HCCI research improved direct-injection gas and diesel engine technologies for these companies, but HCCI itself remains untamed. The benefits of lean combustion Why even try to tame HCCI? The answer is much better fuel economy and lower emissions. Less burned carbon-based fuel, less carbon dioxide released. That's simple. But there are some thermodynamic reasons for the lean combustion you can achieve with compression ignition that are worth explaining. The ideal amount of fuel for a conventional engine to burn is about a 14:1 air-to-fuel ratio. That lets every molecule burn nicely, in theory.

2020 Mazda CX-5 diesel is still, and perhaps forever, MIA

Halfway through 2020, the most recent Mazda CX-5 diesel you can find anywhere in the U.S. is a 2019 model year — the only one offered so far. With automaker factories beginning their model-year turnovers shortly, CarsDirect did some poking around as to the fate of an oil-burning 2020 CX-5. The outlet couldn't get definitive answers, but a host of secondary evidence suggests the diesel crossover will skip this year, naturally leading to the question of whether the model will skip this market from now on.  Asked in April about the crossover's fate or its arrival, Mazda would only say that "with the current state of the world, many things are tentative." The following month, the automaker's early fleet ordering guide pegged this month as marking the end of CX-5 production, 2021MY crossovers starting down lines in August. Mazda had nothing to say about that information, either. When CarsDirect got in touch again for this latest report, Mazda professed the delay has nothing to do with emissions certification. Then the wall went up again, the only other comment being, "We cannot confirm any details for the CX-5 Diesel at this time."    We're speculating, but at this point, even if Mazda could get 2020MY CX-5 diesels on the lot, why should the automaker bother? The challenges for diesel in general, and this expression of diesel particularly, are clear to everyone; our last post on the CUV, six months ago, was about the five-figure discounts dealers were offering. A quick check on Autotrader at the time of writing shows 45 examples of the 2019 CX-5 diesel available nationwide, plenty of them still priced in the low- to mid-thirties. On Autotrader Canada, which specifies vehicle availability beyond the "1,000+ Results" on the American site, there are 6,135 CX-5s listed nationwide, only 58 of them diesel. Canadian outlet Motor Illustrated wrote, "Mazda recently told us they had a lot of Mercedes-Benz GLE diesel owners and other diesel fans with upscale models trade for a CX-5 diesel." Apparently luxury diesel crossover conquest buyers aren't numerous enough to support a model line. The gasoline versions of the 2020 Mazda CX-5 launched in November last year. It shouldn't take that long for us to find out about the fate of the 2020 CX-5 diesel, or if there will be a 2021 model. Related Video: