2007 Mazda 5 Touring Mini Passenger Van 4-door 2.3l on 2040-cars

Auto blog

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.

Mazdaspeed3 concept tipped for Frankfurt debut

The last quarter of 2015 could be a big one for Mazda as a report has emerged from Australia claiming that the company will come to the Frankfurt Motor Show in September with a near-production concept of the third-generation Mazdaspeed3, while a second-generation CX-9 will be shown a few months later in Los Angeles. Motoring.com.au ran the initial report, and although the news seems plausible, the outlet doesn't provide sources for either piece of news. Likewise, our friends at Mazda USA refused to comment on "speculation." Speculation it may be, but it's surely tantalizing considering the recent popularity of both the hot hatch and three-row crossover segments. According to the Aussies, the concept Speed3 will quickly evolve into a production model, which will launch alongside a mid-cycle refresh for the current 3. A turbocharged 2.5-liter will spit out 295 horsepower, and could have all-wheel drive. Even if only the front axle is doing the work, the MS3 will easily be able to stand toe-to-toe with hotter half of the segment based on output alone. As for the more mundane offerings, Motoring reports the long-in-the-tooth CX-9 will get a replacement in LA, although it doesn't offer much in the way of details beyond that. It should be interesting to see how the company's Skyactiv philosophy will be implemented on such a large vehicle. Perhaps the biggest surprise from the Australian report, though, are the outlet's reports on the CX-7, which will return sporting a third row of seats after its larger sibling debuts. That'd give Mazda a versatile lineup of four crossovers, with the sub-compact CX-3, the compact CX-5, the midsize, seven-passenger CX-7 and the fullsize CX-9. As we weren't able to confirm any of this with Mazda, we'd still warn that this news should be ingested with grains of salt. Still, it looks like the company could be set to make some waves in the first two shows of the upcoming auto show season.

Half of Chinese car buyers won't shop Japanese over hard feelings

The hard feelings between China and Japan is no real secret. Besides modern-day disputes, the two countries have had a long-running enmity that dates back to well before the atrocities of World War II. All things considered, then, it shouldn't be a shock that half of Chinese car buyers wouldn't consider a Japanese car. This survey, conducted by Bernstein Research, found that 51 percent of 40,000 Chinese consumers wouldn't even consider a Japanese car – which, again, isn't really surprising, when you consider stories like this. According to Bernstein, the most troubling thing is the location of these sentiments – smaller, growing cities where the population is going to need sets of wheels. We imagine it wouldn't be as big of an issue in traffic-clogged Shanghai or Beijing, but these small cities are going to become a major focus for automakers. "Nationalistic feelings are an impediment. [Japanese] premium brands will struggle," analyst Max Warburton wrote in a research note, according to The Wall Street Journal. Things will improve for Japanese makes, although China will remain a challenge, with Warburton writing, "the one thing that comes out most clearly is that most Chinese really want a German car. While we expect Japanese brands to continue to recover market share this year, ultimately the market will belong to the Germans." There are a few other insights from the study. According to WSJ, Japanese brands are viewed better than Korean brands, and they're seen as more comfortable than the offerings from Germany or the US, despite the fact that everyone in China apparently wants a German car. This is a tough position for the Japanese makes to be in, as there's really not a lot they can do to win favor with Chinese buyers. It will be interesting to see how this plays out, particularly as the importance of the PRC continues to increase year after year. News Source: The Wall Street Journal - sub. req.Image Credit: Kazuhiro Nogi / AFP / Getty Images Honda Mazda Nissan Toyota Car Buying