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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.

Flyin' Miata is building a V8-powered MX-5 ND

It's cold in many parts of the country, but this V8-swapped 2016 Mazda MX-5 Miata that Flyin' Miata is developing has us dreaming about throwing on a parka and taking a very brisk drive. This beast is the product of the talented folks at Flyin' Miata, but we can't get too excited just yet. According to the company's brief Facebook post, this is just a dummy V8, placed under the Miata's hood to confirm fit. Judging by the photo, the engine fits like a glove. "There's still a long way to go before this is a real thing," Flyin' Miata writes, but the company admits everything looks "very promising" so far. The post doesn't mention any details about the estimated specs, but Autoblog reached out to Flyin' Miata for more information about this intriguing build. Keith Tanner, one of the mad scientists who shoehorns V8s into Miatas at the Colorado outfit, told us that Flyin' Miata is looking at both the LS3, which will provide between 430 and 525 hp, and the LT1 which is 460 hp out of the box. A supercharged LT4 is also being considered, but as Tanner put it, "that might be a little nuts" in a car as light as the ND. In any of these engine configurations, Tanner estimates the V8-swapped ND should comfortably be a sub-4 second to 60 mph car. The transmission will be a Tremec T56 Magnum six-speed manual. The suspension, brakes, fuel system, cooling system, and the chassis itself will all be beefed up to handle the power, as per normal FM practice. The one question mark is the rear end, as the ND's existing one simply won't be up to the task of putting that much horsepower to the ground. The 2016 Miata was one of the best cars we drove in 2015, but Flyin' Miata knows how to turn a standard MX-5 into an absolute hotrod with the company's LS3 V8 conversions for earlier models. Imagining the more modern chassis from the latest generation with a massive dollop of more power is an exciting thought. We can't wait to see how this project turns out. Related Video:

Mazda2 refreshed for 2020 with new style and tech

The North American market Toyota Yaris is a badge engineered version of the Mazda 2. Now, the Mazda underneath the Toyota badging has received some updates in its home market of Japan, and it will be interesting to see if or when the U.S. counterpart will be refreshed with any of these updates. The 2020 Mazda 2, now indeed called "Mazda 2" instead of the older Demio name on the Japanese market, has received new front end styling to bring it in line with bigger Mazda models. The grille and bumper are new, as are the headlights with adaptive LED technology and LED daytime running lights. Apparently the headlights are constructed out of 20 individually controlled LED blocks to optimize light output and direction, which sounds awfully interesting for this class of vehicle. The front end design, just like the new 16-inch alloy wheels, is Mazda-specific and the Yarisized version is unlikely to benefit from them, especially since the headlights are also different on the Toyota. Cabin materials have also been updated, and the driver’s seat is available with six-way power adjustability for 2020. The MZD Connect infotainment has Apple Carplay and Android Auto support, like the Yaris setup. In addition, cabin comfort is said to have been improved with better soundproofing, which is sometimes sorely needed in this class of cars. Safety and convenience features include adaptive cruise control, which is impressive on a city car, and the Mazda 2 also has the G-Vectoring Control Plus system for high-speed stability. Both the diesel and gasoline versions will get Mazda's i-Eloop brake energy regeneration system. The Japanese market also gets an all-wheel-drive version, which is surely a hoot despite only being available with the automatic transmission. CarAdvice says the Australian market will receive the redesigned Mazda 2 early next year, which is probably in line with the rest of the global market that gets it as a Mazda instead of a Toyota; Mazda says Japan market pre-orders have started today and official sales will begin on September 12th. It pays to remember that the base car dates back to 2014, and that the 2020 refresh is a facelift instead of a ground-up redesign. Assuming the usually expected shelf-life for the facelifted edition, the 2 will have racked up respectable mileage from the “DJ” generation bodyshell.