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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.

Toyota Matrix discontinued for 2014

Between its slow sales and the upcoming redesign of the closely related Corolla sedan, things haven't been looking good for the Toyota Matrix (for some time now). After 10 years on the market, Toyota has officially announced that it will drop the Matrix from its US lineup following the 2013 model year.
The announcement was made as a part of a press release breaking down what's new for Toyota in 2014, but for now, it doesn't look like any Toyota-branded product will fill the Matrix's spot. The Matrix and its sister car, the defunct Pontiac Vibe, were the final vehicles developed under the joint venture between Toyota and General Motors, an arrangement launched back to 1984.

Toyota GT86 14R-60 shows how to do lightweight at a steep price

Toyota is finally making good on its Griffon concept from last year with this limited-edition 14R-60 that basically hops through the Toyota Racing Development catalog to imagine the ultimate lightweight GT86 (the continental relative to the Scion FR-S/Subaru BR-Z). Unfortunately, it's not coming stateside, and even if this modded Toyobaru were coming here, you might not want to pay the rather steep price.
Like the concept, the 2.0-liter boxer engine still makes the same 197 horsepower and 151 pound-feet of torque. However, the drivetrain isn't entirely untouched thanks to a new air filter, engine oil cooler, a reinforced clutch, lightweight flywheel, and mechanical limited-slip differential from TRD. The six-speed transmission is also tweaked, with different gearing in first and second and an altered final drive ratio.
To keep things planted the suspension gets a new coilovers, a V-shaped tower brace in the front and another in the rear. Improved deceleration comes thanks to upgraded brakes. There also are even more goodies on the outside, including a complete body kit that includes a carbon-fiber roof and massive rear spoiler. The stock wheels are replaced with 18-inch forged magnesium units, as well.