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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.

Mazda's first profit in five years in sight due to weak yen

Automotive News reports Mazda is set to turn a profit for the first time in five years. The automaker is more dependent on exports from Japan than other automakers based in that country, and as a result, it has long suffered at the hands of a strong yen. But the currency has declined in value by some 16 percent over the past six months and Mazda's shares have tripled in value to their highest level since 2008. Contrast this situation to a year ago when Mazda printed 1.22 billion new shares to raise cash. The move was equivalent to 70 percent of the company's then-outstanding stock, and values tumbled to record lows as a result.
Now that the yen has fallen to a value of around 96 per dollar, Mazda operations in the US are more profitable and the company now projects it will earn around $279 million for the next fiscal year. Automotive News says a one yen change against the dollar can have a 9.1 percent impact on Mazda operating profit compared to 4.7 percent at Subaru parent Fuji Heavy Industries or 3.1 percent at Toyota. Those automakers better insulate themselves from currency fluctuations with overseas manufacturing facilities.