2007 Mazda 6 I Sedan 4-door 2.3l, Well Maintained, Excellent Condition, Lowmiles on 2040-cars

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Asian automakers still reluctant to use more aluminum

There's a logical progression of technology in the auto industry. We've seen it with things like carbon-ceramic brakes, which use to be the sole domain of six-figure sports cars, where they often cost as much as an entry level Toyota Corolla. Now, you can get them on a BMW M3 (they're still pricey, at $8,150). Who knows, maybe in the next four a five years, they'll be available on something like a muscle car or hot hatchback. Aluminum has had a similar progression, although it's further along, moving from the realm of Audi and Jaguar luxury sedans to Ford's most important product, the F-150. With the stuff set to arrive in such a big way on the market, we should logically expect an all-aluminum Toyota Camry or Honda Accord soon, right? Um, wrong. Reuters has a great report on what's keeping Asian manufacturers away from aluminum, and it demonstrates yet another stark philosophical difference between automakers in the east and those in the west. Of course, there's a pricing argument at play. But it's more than just the cost of aluminum sheet (shown above) versus steel. Manufacturing an aluminum car requires extensive retooling of existing factories, not to mention new relationships with suppliers and other logistical and financial nightmares. Factor that in with what Reuters calls Asian automaker's preference towards "evolutionary upgrades," and the case for an all-aluminum Accord is a difficult one. Instead, manufacturers in the east are focusing on developing even stronger steel as a means of trimming fat, although analysts question how long that practice can continue. Jeff Wang, the automotive sales director for aluminum supplier Novelis, predicts that we'll see a bump in aluminum usage from Japanese and Korean brands in the next two to three years, and that it will be driven by an influx of aluminum-based vehicles from western automakers into China. Only time will tell if he's proven right. News Source: ReutersImage Credit: Sean Gallup / Getty Images Plants/Manufacturing Honda Hyundai Mazda Nissan Toyota Technology aluminum

2019 Mazda3 Hatchback AWD Premium Second Drive | Gushing about an exceptional car

The 2019 Mazda3 Hatchback is quite simply one of the best cars I've ever driven. During my week with one, specifically a range-topping Premium package version for $31,335, I struggled to come up with bad things to say apart from elements like rear visibility and back seat headroom that are directly related to its distinctive, avant garde design. That's an acceptable tradeoff in my book. So many of the new 3's elements can serve as a measuring stick for other cars. Not just its specific compact hatchback/sedan class, but all other cars, period. I had the Mercedes CLS 450 at the exact time, a car I deeply appreciate and that cost $69,000 more, and yet it was a struggle to decide which I wanted to drive. Perhaps not surprising given the 3's history, but the measuring stick is set first by the handling. It dances between corners with composure and feedback that you just don't get in cars any more Í– let alone at this price point. This is a car you feel through your butt, your heels on the floor and your hands on the wheel. Everything is just so right. And it should be noted that I came to this conclusion before remembering that Mazda switched to a cheaper, less sophisticated torsion beam rear suspension for this latest model. Perhaps you can tell the difference driving 10/10ths at a test track, but in the real world, I certainly didn't notice or log a complaint. Grip is superb. Even when the tires gave way a bit on my mountain road evaluation route, there was only a bit of squealing and it resolutely whipped itself through hairpins with shockingly little understeer for a front-drive-based car, helped no doubt by its all-wheel drive system. It would be interesting to see how much understeer the front-drive versions allow, and whether AWD is mitigating torque steer given the 3's not-insignificant power. As it is, the 3's standard 2.5-liter four-cylinder produces 186 horsepower and 186 pound-feet of torque, which is substantially better than virtually every other base engine in the segment. Its throttle response should be copied by everyone, as should the steering. OK, maybe not Porsche, which I keep finding myself drawing comparisons to whenever experiencing a new Mazda. Take that as the compliment it seems to be. I'd also like to note that the 3 has a six-speed automatic transmission rather than an easily confused eight-, nine- or eleventy-speed unit. Or a damn CVT.

Mazda Skyactiv-X Review | The revolution begins with a squeeze-bang

The matte black Skyactiv-X prototype looks like a rough Mazda3, perhaps reconstructed after a bad wreck by an over-enthusiastic owner of a spot welder and lots of gaffers' tape. Ribbed ducts poke out of the dash sending two breaths of conditioned air to no one in particular. Even its revolutionary engine, the thing we're here to experience, is entombed in a massive, nondescript cover to mask its unseemly noises. It's a wild, strange way to meet a very unconventional vehicle that promises diesel-like fuel economy, a wide torque band, and an exotic method for burning less gas than ever before. It takes a few hours for Mazda's engineers to explain the fundamental principles of operation. For more detail, read our Skyactiv-X Spark Controlled Compression Ignition explainer, but here's a very brief overview. Skyactiv-X marries some traditional gasoline engine characteristics with a novel form of compression ignition called SPCCI. The key for Skyactiv-X is to use very high compression in the cylinder and an extremely lean fuel-air mixture. Squeezed right to the cusp of getting hot enough to blow up all on its own (which is very hard to predict), a squirt of extra gas and a spark interject to cross that compression-ignition threshold in a controlled and predictable manner. See the animation below: That takes a few essential components to get just right. One is a massive amount of computer processing power and some pressure sensors in the individual cylinders, because the ambient conditions change how and when these things happen. Skyactiv-X uses a clutched supercharger to pump in additional air when needed to nail the mixture precisely, and high-pressure injectors to get the low ratios of fuel to disperse properly in the chamber. And since it operates like a conventional gasoline engine sometimes, it uses valve timing to lower the very high compression ratio so it doesn't reach combustion ignition in that mode. In practice, the Skyactiv-X runs in compression ignition mode most of the time. In practical terms, that means it drives like a torquey gasoline Skyactiv engine. The torque curve is broad and flat — diesel-like in that respect. That also means it can get away with using a six-speed transmission and a lower final drive for better response. There's enough grunt and economy together that Mazda can let the engine spin faster — at 60 mph, it's running at roughly 1,000 more RPM than a similar gas engine, with greater efficiency.