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LA Design Challenge invokes biology for 2025 concepts [w/poll]

Participants in the annual LA Design Challenge always manage to come up with edgy, wacky designs for future vehicles, but with a theme of "Biomimicry and Mobility: 2025" this year's crop of cars might be the quirkiest we've ever seen. As usual, automotive designers from around the world participated in this year's competition, and all the designs will all be unveiled next week during the LA Auto Show with a winner being announced on November 21.
Chinese automakers made a strong showing with Qoros, SAIC Motor, JAC Motors (the company responsible for the Ford F-150 clone) and Changfeng all bringing interesting takes on the biology, human intelligence and sustainability theme. One of the more innovative ideas among these automakers is the Qoros Silk Road System allows autonomous vehicles to drive in packs similar to how ants travel. Speaking of ants, the SAIC Motor Mobiliant (shown above) gets its design from the shape of an ant's body, and, like the insect, it can climb building acting as a personal elevator as well. The JAC Motors design also merges vehicle and building design, while the Changfeng LaBrea inspired by the design of muscle fibers.
Other entrants include Subaru and US-based design teams for BMW, Toyota and Mazda. BMW's duo of concepts mimic plant and animal life. The LA Subways concept acts as a submersible, single-person vehicle to take advantage of the LA river, with a shape similar to an Ocean Sunfish. The Sustainable Efficient Exploratory Device (SEED) imitates the shape of a seed pod, and uses propulsion methods inspired by a shark, dragonfly and a water bug. Mazda's Auto Adapt might be the most car-like concept of the bunch, while the Subaru Suba-Roo and the Calty-designed, Toyota e-grus are the most mind-blowingly awesome.

2019 Mazda CX-5 Review and Buying Guide | The driver's choice

The 2019 Mazda CX-5 stands out in an ever-expanding field of similarly sized compact crossovers. There are several good options for shoppers looking to replace the traditional family sedan with something that sits up a little higher and offers some added utility via a reasonably sized open cargo area instead of a closed-off trunk. But if you really enjoy spending time behind the wheel, there isn’t a small crossover that can match the Mazda CX-5Â’s blend of excellent driving dynamics, practicality and affordability. For that reason, weÂ’d suggest that everyone shopping in this segment should take the CX-5 for a test drive. WhatÂ’s new for 2019? The CX-5 gets its first significant update since being completely redesigned for 2017. There are two new engine choices. A 2.5-liter turbocharged four-cylinder is the more powerful option the CX-5 has always needed, while the new 2.2-liter diesel engine is the answer for those who want better fuel economy. Every CX-5 benefits from a retuned suspension setup and MazdaÂ’s G-vectoring Control Plus system, which are intended to improve the 2019 CX-5Â’s handling. A revised infotainment system loses its touchscreen capability but now offers Apple CarPlay and Android Auto capability (it is not, however, the all-new and greatly improved system found in the Mazda3). Also new for 2019 is a top-spec Signature trim level that adds a layer of wood and chrome trim to the interior to go along with attractive brown leather upholstery and a 360-degree camera monitor. A set of 19-inch Dark Silver aluminum wheels and unique badging round out the noteworthy Signature upgrades. WhatÂ’s the CX-5's interior and technology like? The CX-5 boasts a handsome, upscale design with materials to match. The cabin conveys the more premium vibe that Mazda is increasingly shooting for – it also makes a more emotional connection than the typical cardboard box on wheels. Its top two trim levels, Grand Touring Reserve and Signature, boast seats that are heated all around and ventilated up front, covered in high-quality leather with contrast French stitching. There's stitching on the dash too, though it goes through rubbery stuff. The padded and stitched pleather on the doors and center console are a nicer touch, as is the subtle dark wood and alloy trim – especially the air vents that seem to jut out from within the dash.

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.