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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.

Best cheap SUVs: You don't have to pay a lot to get a lot

Here's a news flash: Everything is a lot more expensive now! And that definitely goes for new SUVs, with prices that keep nudging higher and higher. Actually "nudging" might be too soft of a description for their motion. "Skyrocketing" is probably more accurate.  While higher prices and hefty interest rates have likely knocked a lot of people out of the new car market entirely, there are still quite a few cheap SUV choices. Better still, they're not terrible! Far from it, in fact. While the lowest price SUVs used to be drab, sorry affairs best left to the lots of Avis and Budget, that is definitely not the case today. Not only are there legitimately appealing cheap SUV choices, they offer genuine differences in character, capability and design. It's not just a series of anonymous boxes with different badges. Below you won't just find a simple list of the cheapest SUVs available. We are actually pointing out the best ones. They are listed from least expensive to most expensive, with none exceeding a starting price of $30,000. Most are subcompacts, but a few of our top choices in the compact SUV segment snuck on. Finally, please excuse the crummy photo quality. We sought out representative trim levels of the prices in question rather than just reusing pretty carmaker-provided photos of the most expensive trim levels. This is what the cars will actually look like. Kia Soul Why it stands out: Ample space and abundant features for the money; unique style; strong turbo engine upgrade Could be better: All-wheel drive is not available Starting Price: $21,315 Read our most recent Kia Soul Review The Kia Soul definitely didn't start off as a small SUV, and the term "crossover" is probably better applied to it. Still, what started life as an undefinable funky tall hatchback now finds itself in its third generation with numerous vehicles of similar shape and size that are dubbed "small SUV" or "small crossover." If it walks like a duck and quacks like a duck ... Call it what you will, but the Soul delivers the goods with tons of equipment and space for its price and size, an agreeable driving demeanor, and an even more powerful engine upgrade than the Kona's. We also think it's pretty cool. All of the above helped it win our subcompact SUV comparison test. Now, if there's one area where the Soul does not satisfy a typical SUV requirement, it's the lack of available all-wheel drive.

Next-gen Mazda MX-5 could use carbon fiber to cut weight

The current Mazda MX-5 Miata has only been out for a few years, but the automaker is allegedly looking for ways to lighten the next one. According to a report from Autocar, Mazda is looking to carbon fiber to help the next-generation MX-5 cut weight and use a smaller engine. Despite having more safety features, modern amenities, and a stiffer body, the current MX-5 is the same size as the original sports car from 1990 and weighs less than its immediate predecessor. In a recent interview with Autocar, Nobuhiro Yamamoto, head of the Miata program, revealed that the next generation of the Miata will probably stay the same size, but could be even lighter thanks to the utilization of carbon fiber. The current MX-5 uses high-strength steel and aluminum, and Mazda doesn't use carbon fiber in any of its cars. Carbon fiber is expensive to incorporate into road-going vehicles, and so Yamamoto notes that Mazda has been hard at work making it more affordable. A lighter car could result in a smaller engine, Yamamoto said. In the US, the MX-5 comes with a 2.0-liter four-cylinder engine that makes 155 horsepower, while the Japanese and European version comes with a 1.5-liter, 130-hp engine. A smaller engine would make the sports car even lighter. It's unknown at this time if the automaker is collaborating with another automaker or a supplier to make produce carbon fiber, or if it'll make it in-house. There's no word on how much carbon fiber the next MX-5 will wear or how it will affect the sports car's price. Autocar reports that the next MX-5 won't arrive anytime before 2021, which could make the ND MX-5's lifespan an unusually short five years long. With cars getting heavier, it's nice to hear that Mazda is working on finding a way to make its lightweight sports car even lighter. Related Video: News Source: AutocarImage Credit: Mazda Mazda Convertible Coupe Lightweight Vehicles