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Mazda Miata could get retractable hardtop in New York

The upcoming New York Auto Show just got a little more exciting because Mazda could debut the latest MX-5 Miata with a power retractable hardtop there. The best evidence comes from Autocar, which has an image of Mazda's invitation. The message promises a "world premiere" in the Big Apple and further teases, "Help us blow the lid off the New York Auto Show." The last Miata PRHT made up 52 percent of the roadster's sales mix in the US, so creating another one is an easy decision for the company. According to Autocar, expect the new roof mechanism to be lighter and more compact than the previous design. It would still add some weight compared to the cloth top, but customers would get the added insulation and security from the hardtop. With the NC PRHT as a guide, don't expect many changes for the new other than the roof. The 2.0-liter four-cylinder with 155 horsepower and 148 pound-feet of torque with either the six-speed manual or automatic should still make for an exciting drive. The hardtop just makes life a little more comfortable if you have to deal with rain or snow for part of the year. We can't wait to see it. Related Video:

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.

Miata buyers prefer a manual gearbox, says Mazda

Earlier, we wrote about Toyota's underwhelming 2018 manual transmission sales figures. To recap – as Toyota's representatives told CarBuzz – the automatic Corolla outsold its manual equivalent to a ratio of 100 to 1, and just one in three Toyota 86 buyers picked a manual version of the rear-drive coupe. What about the other famous rear-wheel-drive offering from Japan, Mazda's MX-5 Miata? A case can be made that an 86 buyer cross-shops the Miata, and vice-versa, but what kind of split do Mazda's sales figures reflect in comparison? We reached out to Mazda for some sales data, and PR program manager Tim Olson told us 76 percent of Miata soft-top buyers go for the classic stick-shift option, leaving just 24 percent of buyers preferring the automatic. Both transmission options for the Miata are six-speed. The figures are based on year-to-date sales data for the 181-hp 2019 Miata, from July 2018 through April 2019. Interestingly, the more coupe or targa-like, retractable hardtop RF variant takes a step towards the 86 when it comes to transmission choices. While RF buyers still preferred the manual, the split was far closer to half and half: 52% went for the manual, and 48% chose the automatic. Perhaps this reflects the RF's more grand tourer-like image, and it might also be indicative of the RF's higher pricing. If you're going to spend nearly $34,000 for a Miata, another $600 for an autobox doesn't necessarily mean that much – choosing the auto on the base, Sport trim level soft top roadster is a $1,350 bump instead. While the $26,650 base Sport isn't exactly spartan, on a roadster it's fine to have less cushiness. With the higher-specced Club trim level, the auto's price tag shrinks to the aforementioned $600, as it is on the RF Club. There's no base Sport for the RF, as the cheapest RF is the $33,865 Club. But still, the manual shifter's snick-snack feel is one of the Miata's classic traits that has been with it since its inception 30 years ago. Sources say fewer than 5% of the original first generation Miatas were made with an automatic gearbox, but it's obvious trends and tastes are changing – although to be fair, automatics are getting much better as well.