2010 Mazda Mx-5 Miata Grand Touring Convertible Automatic - One Owner - Perfect on 2040-cars

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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.

Crossovers help Mazda post its best January sales in 24 years

Mazda's 2017 ended on a bit of a flat note. It wrapped up the year with 2.8 percent fewer U.S. sales than 2016, and 8 of the 12 months lower month-over-month. But 2018 is off to a much brighter start with the company having its best January sales month since 1994, with just under 25,000 cars sold. Besides that headline statistic, the higher sales also mean this January exceeded 2017's sales by 15 percent or about 3,300 cars and put it ahead of January in that healthy 2016 year. Compared with this past December, though, sales are down about 2,000 cars. The gains are entirely due to the success of Mazda's crossover SUVs. The CX-5 was the best of the best with a month-over-month gain of over 66 percent. In actual numbers it sold about 13,500 copies compared with about 8,000 last January. The big three-row CX-9 had a big jump going from 1,600 units sold last January to about 2,300 for a gain of almost 47 percent. Even the little CX-3 saw a small gain between the two Januarys, going from about 1,200 to 1,350 sales. View 14 Photos Mazda's January would've been even better if its conventional cars hadn't dropped so much. Both Mazda Miata and Mazda6 sales dropped by just over half. The Mazda dropped from 3,300 sales to just under 1,600, and the Miata dropped from a little over 900 to a little over 400. Mazda3 held on a little better with just a 12 percent drop from last January going from about 6,600 to 5,800 sales. The lopsidedness of these sales isn't all that surprising. Crossovers have been a boon to loads of manufacturers. For example, Mitsubishi had an 2017 full of sales improvements, with the company finally breaking 100,000 units for the first time in years, and it was all because of improving crossover sales. January's sales also continue an unfortunate downward trend for Mazda's cars, with both the Mazda6 and Mazda3 having month-over-month declines every single month since February. It will be interesting to see if the new turbocharged engine option on the Mazda6 will improve sales of the sedan later this year. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

2018 Mazda Miata adds a cherry on top

For 2018, Mazda is adding a number of new options that should get the attention of prospective Miata buyers, and one of them is shown above. Starting with the new model year, Mazda will offer both the usual black soft top, but also a "Dark Cherry" red top. It looks quite sharp with the silvery-blue color above, and it should be an excellent complement to the Grand Touring model's newest interior option. On the Grand Touring trim, customers can choose the reddish-brown Nappa leather interior that was first applied to the Miata RF Launch Edition. The interior package adds $300 to the top-trim Miata's price tag. There are a few other upgrades sprinkled throughout the Miata lineup. The base-level Sport models will finally get infotainment with a 7-inch screen instead of the little stereo controls mounted to the dash. The midrange Club model now gets heated cloth seats that are upgraded to heated leather units with the Brembo/BBS package, which for $3,770 adds Brembo brakes, BBS wheels, a body kit and the aforementioned seats. Another $700 nets the same package but with Recaro seats that also feature seat heaters. Along with the new features come slight price increases across the board. The base 2018 Sport trim now starts at $26,185, an increase of $395. The Club increases in price by $370 to $30,045, and the Grand Touring has the smallest change of $145 to $31,085. The first 2018 soft-top Miatas will arrive at dealerships this month, and should be available everywhere in January. Related Video: Image Credit: Mazda Mazda Convertible Performance mazda mx5