1992 Mazda Protege Dx Sedan 4-door 1.8l on 2040-cars

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2016 Mazda MX-5 Miata a knight in white satin

We're not going to lie to you. The reason you're seeing the fourth-generation Mazda MX-5 Miata on these pages again is solely because this is the first time we're seeing the roadster displayed in a color other than the ruby shade it was first shown in. Okay, okay, so this is the first time the Miata is being displayed at a North American auto show other than SEMA, and we'd say that this is the first time Mazda is showing a US-spec model, but clearly this is a right-hand-drive car. Either way, there's still not much to it yet, especially since Mazda is still withholding power and performance figures.
As expected, the ND Miata, as it is already known among the cognoscenti, will receive a 2.0-liter Skyactiv four-cylinder and the buyer's choice of a six-speed manual or a six-speed automatic here in the US. The 1.5-liter model engine that had been linked to the car back in the rumormill stage will not make it to our showrooms.
Preliminary specifications still show the Miata measuring just 154.1 inches in length overall, with an increased track width to 68.1 inches and a low, low overall height of 49.0 inches. Despite the larger-displacement engine and its presumably heavier weight, Mazda is still claiming ideal 50:50 weight distribution and a weight loss of over 220 pounds versus today's NC generation. All of which sounds like the Miata has the right ingredients to make good on its promised Jinba Ittai ("rider and horse as one") driving experience.

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.

Surprise! 2017 Mazda MX-5 RFs are already being delivered

Last month, when Mazda opened up ordering for Launch Editions of the MX-5 RF, the company estimated that cars would arrive in February. Well, today Mazda announced that some changes in production scheduling meant that MX-5 RFs are ready sooner than expected. In fact, Mazda already delivered an RF to a customer. The company delivered the first MX-5 RF Launch Edition in America last week to Dave Putter. He got the keys from Masahiro Moro, president and CEO of Mazda North America Operations, at the LA auto show last week. More RFs are coming, too. Mazda says that about 500 more will arrive across the country in December. Mazda also said that availability will expand throughout the winter and spring months. So, for people who've ordered a Launch Edition, it looks like you may get an early holiday gift. And for those waiting to check out normal ones in dealers, you won't have to wait much longer. Related Video: