1994 Mazda Rx-7 Touring Coupe 2-door 1.3l on 2040-cars

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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.

Sell your own: 2012 Mazda CX-9 AWD

Looking to sell your car? We make it both easy and free. Quickly create listings with up to six photos and reach millions of buyers. Log in and create your free listings. If your only connection to Mazda is the MX-5 Miata, know there's more to the Hiroshima-based carmaker than "zoom" - there's also room. The 3-row CX-9 is the roomiest Mazda, 200 inches long with some 100 cubic feet of cargo space. The CX-9 wasn't Mazda's first stab at a crossover. Its original MPV was more crossover than minivan, with a RWD/AWD platform and – get this! – an available manual trans. While the MPV morphed into a more conventional minivan, Mazda introduced the CX-7, CX-9, CX-5 and – most recently – the subcompact CX-3. Although the CX-7 is no more, the crossover segment remains hot. This for-sale CX-9 is from the model's previous generation. It's also the beneficiary of the last V6, as its more upscale replacement boasts only a turbocharged four. We like both, but the V6 is relatively refined. And this car's price of $16,000 sure beats a new CX-9's $36,000. It's almost $2K above an average selling price, but with a clean Carfax and its 60K major service behind it (and some price flexibility) this CX-9 could provide some voluminous value. Related Video:

Mazda teases CX-4 for the Beijing Motor Show

Mazda will unveil the CX-4 crossover at the Beijing Motor Show in late April, and the company's single teaser image (above) suggests the CUV might borrow styling cues from the larger Koeru concept. Mazda kept details about the CX-4 light for now but says in the announcement, "this is a new type of crossover SUV designed to help customers live more creative lives." The teaser photo offers some hints about the design. For example, the rear pillar comes to a point and features chrome accents, which are elements from the Koeru and production CX-9. The arching roof rail suggests a coupe-like shape because it arcs downward to the hatchback. The name also hints that this model slots between the CX-3 and CX-5 in the lineup, but the CX-4 appears to prioritize style over utility. We can't wait to get a better look because this picture doesn't offer much detail. The company will also show versions of the Mazda3 and Mazda6 for the China Touring Car Championship at the Beijing show. Related Video: Mazda to Debut New CX-4 Crossover SUV at Beijing Motor Show - Twelve models on display including new-generation Mazda3, CX-5 and Mazda6 - HIROSHIMA, Japan—Mazda Motor Corporation will debut the all-new Mazda CX-4 crossover SUV at the Beijing Motor Show.*1 The automaker's stand at the show will feature twelve vehicles, including new-generation models such as the Mazda3, Mazda CX-5, Mazda6, and race cars prepared for the Mazda-sponsored MZ Ruisi Racing Team competing in the China Touring Car Championship (CTCC). The CX-4 is the latest addition to Mazda's new-generation lineup of models featuring the full range of SKYACTIV Technology and KODO-Soul of Motion design. With a striking presence that sets it apart from other SUVs, the functionality modern users expect and Jinba-ittai driving thanks to Sustainable Zoom-Zoom, this is new type of crossover SUV designed to help customers live more creative lives. In addition to the CX-4, Mazda will display other vehicles and technologies that represent the brand. Mazda aims to enrich people's lives through a variety of touch points and become a brand that maintains a special connection with customers. *1 Also known as 2016 Beijing International Automotive Exhibition. Press days are April 25-26. Special invitation days are April 27-28. Open to the public from April 29 through May 4.