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Tougher than steel: Wood pulp could make lighter auto parts

KYOTO, Japan — The global push among carmakers to make ever lighter vehicles is leading some auto suppliers in Japan to turn to what seems like an unlikely steel substitute — wood pulp. Japanese researchers and auto component makers say a material made from wood pulp weighs just one-fifth of steel and can be five times stronger. The material - cellulose nanofibers — could become a viable alternative to steel in the decades ahead, they say, although it faces competition from carbon-based materials, and remains a long way from being commercially viable.> Related: Jay Leno drives the Renew cannabis car — hemp you can't dent Reducing the weight of a vehicle will be critical as manufacturers move to bring electric cars into the mainstream. Batteries are an expensive but vital component, so a reduction in car weight will mean fewer batteries will be needed to power the vehicle, saving on costs. "Lightweighting is a constant issue for us," said Masanori Matsushiro, a project manager overseeing body design at Toyota. "But we also have to resolve the issue of high manufacturing costs before we see an increased use of new, lighter-weight materials in mass-volume cars."A NEW PROCESS Researchers at Kyoto University and major parts suppliers such as Denso Corp, Toyota's biggest supplier, and DaikyoNishikawa Corp, are working with plastics incorporated with cellulose nanofibers — made by breaking down wood pulp fibers into several hundredths of a micron (one thousandth of a millimeter). Cellulose nanofibers have been used in a variety of products ranging from ink to transparent displays, but their potential use in cars has been enabled by the "Kyoto Process," under which chemically treated wood fibers are kneaded into plastics while simultaneously being broken down into nanofibers, slashing the cost of production to roughly one-fifth that of other processes. "This is the lowest-cost, highest-performance application for cellulose nanofibers, and that's why we're focusing on its use in auto and aircraft parts," Kyoto University Professor Hiroaki Yano, who is leading the research, told Reuters in an interview. The university, along with auto parts suppliers, are currently developing a prototype car using cellulose nanofiber-based parts to be completed in 2020.

2018 Mazda CX-5 is the only IIHS Top Safety Pick Plus compact crossover

We've highlighted a number of vehicles tested by the IIHS, and specifically ones that come up just a little short of being lauded with the organization's highest safety rating of Top Safety Pick+. The reason most of these vehicles fall short is sub-par headlights. But this time we have a different story. The 2018 Mazda CX-5 actually snagged the coveted award, and impressively, it's the only small crossover SUV the organization has tested to earn it. The reason of course hinges on headlight performance. In order for a vehicle to get the award, it has to have headlights available that score a "Good" rating, in addition to having stellar crash tests. The award for good lighting and the Top Safety Pick+ only goes to the CX-5 with the optional adaptive lighting system available on all trims (optional on the base Sport). The standard headlights on the Sport model earned the second-highest rating of "Acceptable." The CX-5 also earned a "Good" rating in every crash test, including both small-overlap tests. It earned 5 out of 6 points in forward collision prevention, netting a "Superior" rating. There are many safe options in the small SUV category besides the CX-5, though. The Honda CR-V, Hyundai Tucson, Kia Sportage, Mazda's own CX-3, and Mitsubishi Outlander match the CX-5's straight-"Good" crash test ratings. They all also pick up an additional forward collision point in the collision warning category. The best headlights any of them can offer, though, are just "Acceptable," and the standard headlights can be even worse with "Marginal" or "Poor" ratings. Related Video: Featured Gallery 2017 Mazda CX-5: First Drive View 25 Photos News Source: IIHS, MazdaImage Credit: Mazda Mazda Safety Crossover SUV consumer mazda cx-5

Next-gen Mazda2 designed for 'predominantly feminine' appeal

We can't ever think of a time we've heard anyone accuse the current Mazda2 of being too edgy, which makes reports of a softer design for the next-gen model a little surprising. Autocar reports that when the new 2 debuts next fall, it will have a "softer, more feminine appeal" than the current design.
This description lends a little more credibility to the Japanese magazine image we saw of the car back in July. Aside from Mazda's Kodo-inspired signature face, that picture did reveal softer lines, especially along the side of the car. This softened styling is to appeal to the car's target market, which Mazda's European design chief is reported to have called a "predominantly feminine customer base." Last we heard, though, Mazda might keep the next 2 out of the US due to slow sales.
The 2015 Mazda2 will reportedly ride on a shortened version of the platform used for the CX-5, but Autocar mentions that its platform could also be the basis of a new subcompact crossover - possibly to go up against vehicles like the Buick Encore and the upcoming Honda Fit-based crossover called the Vezel.