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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.

Subaru, Toyota refute reports of BRZ, 86 demise

After news broke of an anticipated Japanese report telling that the Toyota 86 and Subaru BRZ twins were not long for this world, both carmakers have denied the cars' successors have been canceled. Carscoops reports that both Toyota and Subaru have stated they are developing next-generation cars. As a Subaru USA spokesman told Carscoops: "We do not endorse this report coming from Japan's Best Car. ... We are moving ahead with a next-generation Subaru BRZ, but have no further details at this time." The website also reported a similar statement from Toyota. With the models getting long in the tooth and no test mules having been spied, doubts are not unwarranted — remember just how long Toyota teased the fifth generation Supra before its 2019 debut. More information is not yet available, or whether the two brands will still collaborate to bring the new-generation coupes to the market, but for Toyobaru fans this might be grounds to breathe a sigh of relief. That would also mean, that if the hinted MR-2 revival is based on solid ground, there will be a full "Three Brothers" Toyota sports car portfolio for sale in the next decade. With the Supra offered also as a four-cylinder in Japan, it will be interesting to see if Toyota will retain the 86's current, slight power advantage over the Supra's 197-horsepower variant or respect the status of the bigger brother. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Toyota to drop regular-cab Tacoma as small pickups take another hit

Even as General Motors prepares to redesign its midsize pickups, the market for sub-fullsize trucks continues to shrink. The remaining competitors in the segment are the well-aged Nissan Frontier, Honda Ridgeline and Toyota Tacoma, and now Truck Trend is reporting that the latter will be dropping its regular cab model due to poor sales.
According to the article, the available configurations for the Tacoma lineup will be whittled down in 2015, which apparently spells the end for the two-door Taco. The Tacoma is currently the last truck in its class to be offered in a regular cab configuration, with the Frontier no longer offering a standard cab model and spy shots of the next-gen Chevrolet Colorado not revealing any glimpse of a short cab, either.