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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 MX-5 Miata finally has a great pair of seats

We all know the 2018 Mazda MX-5 Miata is a truly wonderful car. It takes everything delightful about cars and driving and distills it into a compact and lightweight package. It's a car anyone can enjoy. My wife, who until recently has shown no real interest in sports cars beyond their design, wants one. I want one, too, but I couldn't get past the Miata's terrible seats. For 2018, there's finally an alternative. The 2018 Miata got a number of minor updates. Most people I know were fawning over the new cherry-red top, but I was far more interested in the leather-wrapped Recaro seats. These are now included in the $3,770 Brembo/BBS package. Previously, that package just added a set of two-piston Brembo front brakes and black BBS wheels. Having put thousands and thousands of miles on various NDs, I didn't think it was really a worthwhile option unless you were planning to track the car regularly. These seats have changed my tune. The standard seats in the Miata are bad when new and get progressively worse as they break in. I'm a big guy (6-feet tall and about 220 lbs.), but I know I'm not alone in the assessment. They're thin, unsupportive and wrapped in some cheap fabric. Just look at this photo from our old long-termer. The seats kill any real desire to own one. These Recaros are different. Yes they're still thin, but they have bolstering and padding in all the right places. I no longer feel like I'm riding along on a cheap, worn-out couch. Plus, they're heated (though you can now get heated cloth seats), making the brisk Michigan-morning commute far more comfortable. Now all the Miata needs is a slight bump in power. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Design/Style Mazda Convertible Performance

Mazda launches 25th Anniversary Miata pre-order site, priced from $32,205

Mazda made a big celebration of the MX-5 Miata at the 2014 New York Auto Show with a bunch of classic models on display. It capped off the model's 25th birthday with the announcement of the 2015 MX-5 Miata 25th Anniversary Edition and showed off the much-anticipated, next-generation version's chassis.
While we are still at least year away from the new Miata hitting the road, the anniversary edition is on its way and is limited to just 100 copies for the United States. The special cars start at $32,205, compared to $23,970 for the 2015 softtop model and $28,665 for the 2015 retractable hardtop version. There is an additional $795 destination charge for all of them.
To make sure everyone gets a chance to own the ceremonial convertible, Mazda has a countdown on its website until 10:25 AM PDT, May 20, 2014. When the day comes, 250 people can to register for the car, and the first 100 to be verified as buyers get the rare Miata. Those with multiple entries will be disqualified.