2014 Mazda Mazda5 Grand Touring 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.

2014 Mazda6: Winter's End Update

The Winter Without End is seemingly dead. Outside my office windows, my brown and yellow lawn is fully exposed to the increasingly powerful sunshine, the morning birdsong is louder than anything until the garbage trucks start rolling, and I'm seriously considering having the summer tires put back on my personal fleet. That last one is a little scary, as I'm a firm believer in the April Snow Jinx, but you get the idea.
The long-term Mazda6 has also long since left my driveway. Looking back on my notes from the time it was in my charge, however, I see all remarks are dominated by one highlighted section at the top: "worst winter drive of all time." I hardly need the reminder, to be honest. Here's what happened.
When the Mazda showed up at my door, we'd already fitted the thing with its new winter rubber: Bridgestone Blizzaks. Plunking down for dedicated snow tires was a near necessity this year - as it almost always is in Michigan. We didn't see much reprieve from snow-choked, iced over roads here in Ann Arbor, and the knobbier rubber proved invaluable in getting me out of my house time and again.

Fiat reconsidering Mazda-based Alfa Romeo roadster? [w/poll]

Alfa giveth and Alfa taketh away. With apologies to Job (he has gone through a lot, after all), that's how things are looking at the Italian automaker - whether it's the promise of new products or its impending return to the North American market. But it's especially true when it comes to new roadsters.
While Alfa Romeo is expected to unveil the 4C Spider at the Geneva Motor Show this week, reports are now suggesting that its other roadster project is being called into question. That project is a joint venture between Fiat and Mazda, which was set to produce a version of its next MX-5 Miata as an Alfa Romeo, and was even changing the design to accommodate Alfa's requirements.
Now it appears, however, that the whole project in doubt. The problem seems to stem from Sergio Marchionne's pronouncements that, as long as he's in charge, there won't be an Alfa Romeo built outside of Italy.