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Next Toyota Prius may get optional all-wheel drive

We've been hearing rumors about the next generation of the Toyota Prius for the last couple of years on a pretty regular basis. From the expectation of lithium-ion battery packs with more capacity for electric-only miles to wireless charging and more emotional styling, there's been no shortage of talking points for the car that's expected to see its first light of day at the very end of 2015 (we hope). But one thing we've yet to hear about, until now that is, is all-wheel drive. According to a report from Automotive News, Koei Saga, senior managing officer in charge of powertrain development of the Prius, said in an interview last week, "I think we will possibly do [all-wheel drive]" for the car's next generation. There isn't any further indication on how the AWD system would work, but we'd put our money on something similar, at least in principle, to the E-Four system that just debuted on the 2015 Lexus NX 300h, which uses an electric motor mounted at the rear to power the car's back wheels when the front wheels lose traction. The AN report also repeats a rumor we've heard before – that Toyota may offer two different battery pack options in its next Prius, one using lithium-ion chemistry and one using the nickel metal hydride technology that the Prius has featured from its very beginning. While the automaker has yet to talk efficiency, it's natural to expect more capacity for EV driving from newer lithium-based technology over that of nickel-based packs to go along with what we'd also expect would be a somewhat higher price. We're sure you're just as curious about the next Prius as much as we are, and so we'll leave you with these words, again from Saga: "The batteries will be renewed. Everything will be revised. And I think we will come up with a fuel economy that will surprise everyone."

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 Tells Dealers To Stop Selling Six Models

Toyota has told North American dealers to stop selling six popular models with heated seats because the fabric doesn't meet flammability standards. One soft material beneath the seat covers does not comply with U.S. safety standards, company spokesman John Hanson said. No fires or injuries have been reported, but Toyota can't legally sell cars that don't comply with U.S. safety codes, Hanson said. The company is still totaling how many vehicles are affected, but it will be in the thousands, according to the spokesman. The stop-sale order could mean trouble for Toyota and its dealers because it covers the company's top-selling vehicles. Dealers can no longer sell certain Camry, Avalon, Sienna and Tacoma models from the 2013 and 2014 model years, as well as Corollas and Tundras from 2014. The Camry, for instance, is the top-selling car in the U.S. with more than 408,000 sales last year. It depends on how long the repairs will take. Hanson said the company already has a new material that's being installed at factories and will be put in cars that are on dealer lots. "We don't think it will take long to get the parts and make the changes," Hanson said, without getting more specific. As for vehicles already on the road, Hanson says Toyota has reported the problem to the U.S. National Highway Traffic Safety Administration, which will decide if the sold vehicles should be recalled. A NHTSA spokesman said he would check into the matter. "We don't believe that there is a safety issue here because there have been no reports of any problems," Hanson said. The stop-sale order affects cars and trucks distributed to dealers in the U.S., Canada and Mexico. In addition, some vehicles were exported outside North America, Hanson said. The problem was discovered by safety regulators in South Korea, who disassembled seats and tested individual fabrics, Hanson said. U.S. safety standards require fabrics to resist flames at a certain rate, but the one fabric didn't meet the standard, Hanson said. Toyota spokesman Naoki Sumino in Japan said the affected vehicles were sold since August of 2012, when the fabric supplier was changed. Toyota has been struggling to regain its once sterling reputation for quality after announcing massive recalls over several years, starting in 2009, for a variety of defects including braking, accelerators and floor mats. The company was fined for being slow on recalls, which affected more than 14 million vehicles, and faces lawsuits.