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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.

Mazda MX-5 Miata Cup racecar priced at $53,000

The 2016 Global MX-5 Cup is one of very few internationally competitive racing series that the average person can imagine (or afford) getting into. The ready-to-race Miatas are available to order now for $53,000 and deliveries are set to begin later this year. The first one is actually already on track as a pace car at Mazda Raceway Laguna Seca. With competition planned in North America, Europe, and Asia, all of the cup cars are identically prepared to emphasize drivers' skill rather than their bank account. The full list of Cup components hasn't been announced yet, but the roll cage and stripped interior are obvious. The 2.0-liter SkyActiv four-cylinder is still under the hood, too. The Global MX-5 Cup will also offer competitors big rewards, including a $200,000 scholarship for the season champion to move another rung up the motorsports ladder. In addition, Mazda will bring together the top racers from across the world to Laguna Seca to crown a series world title holder in a finale event. That winner will get a test In Mazda's prototype from the IMSA Weathertech SportsCar Championship. For now, Mazda is giving first priority to buyers planning to compete in its series. In the future, buyers of MX-5 Cup cars have other competition options, being eligible for some classes in Sports Car Club of America and National Auto Sport Association racing. Related Video: Mazda Announces Global MX-5 Cup Race Car Pricing - Initial Orders Being Accepted for the $53,000 Ready-to-Race 2016 MX-5 Miata - Oct 1, 2015 IRVINE, Calif., Oct. 1, 2015 /PRNewswire/ -- The Mazda MX-5 Miata is the most road-raced production car in the world. The reason is simple - great performance at an affordable price. The new Global Mazda MX-5 Cup race car follows that formula, and will be Mazda Motorsports' first-ever ready-to-race MX-5 Miata. The new race car will be available at the special introductory price of $53,000. The race car ordering process begins on www.MazdaMotorsports.com with first deliveries scheduled to begin later this year. 2016 Global Mazda MX-5 Cup Race Cars Having a turnkey, ready-to-race car removes the effort of engineering and costs of fabrication, enabling the racer to focus on racing. All racers can purchase identically-built race cars so that driving talent will be the number one determining factor for on-track performance, rather than budget, engineering capability or fabrication skills.

The Mazda MX-5 Miata is truly a four-season sports car

For all intents and purposes, the Mazda MX-5 Miata is a product of California. I know it says Hiroshima on the shipping container, but the car belongs to the Golden State as it was dreamt up in Irvine and honed its driving skills on the roads near Santa Barbara. And logic would dictate the Miata would be useless in any situation other than direct sunlight. That's what drivers from other states would think, anyway. It's the time of year when those of us from the west coast fly out to places where it's snowy and icy and everyone laughs at us because the cold and white stuff essentially shuts us down. Make fun of Californians driving in the rain or freaking out when the outside temperature dips below 55 degrees. What can we say, we're just out of our element. Perhaps, then, it's surprising the Miata handles snow a lot better than I do. I found this out when Mazda sent me to Crested Butte, CO, for a little fun on a frozen track. Yes, there was a lot of sideways action, but it had more to do with the two California residents inside than with the car. The company really invited journalists to Colorado to get an idea of how its all-wheel-drive crossovers perform when things get snowy and icy. But the real show was watching how we navigated the autocross course they set up for the rear-drive Miatas that Mazda brought along. The Miata had a good heater, but it was my laughter caused by immense admiration that kept me from freezing my fingers off. Armed with a set of Bridgestone Blizzak winter tires, the Miata performs just about how you'd expect it to – if you're light on the gas and quick with the steering and have a good amount of patience in you. It all works well if you're a pro driver, less so if you're not a frequent track visitor, regardless of the weather. But fortunately we were using the fourth-generation Miata, which has to be the most forgiving sports car ever. On pavement, it behaves like a compact hatchback. Put it in sixth and it's relaxed and compliant, with a ride that doesn't beat you up and an engine that knows when you just want to get where you need to go. Provoke it, however, and it rewards you with predictable responses from the controls. It does the same thing on ice, if you have a firm grasp on how a car responds to the frozen stuff. Starts are tricky, even in second gear, if you underestimate the power from the 2.0-liter four.