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Submit your questions for Autoblog Podcast #319 LIVE!

We record Autoblog Podcast #319 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
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Jeep checks out the Grand Wagoneer at Wagonmaster

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.

Editors’ Picks March 2023 | Hot hatch galore and some great luxury SUVs

This month of Editors’ Picks sees us hand out a pair of nods to the best hot hatchbacks money can buy these days, the Honda Civic Type R and Toyota GR Corolla. You can read more about how they compare in our head-to-head comparison test, but both have their advantages, and we can highly recommend buying either of them. Then we head to Europe to recognize a couple of SUVs that just went through mid-cycle refreshes and came out on the other side just as lovable as they were before. In case you missed our previous Editors' Picks posts, hereÂ’s a quick refresher on whatÂ’s going on here. We rate all the new cars we drive with a 1-10 score. Cars that are exemplary in their respective segments get an EditorsÂ’ Pick designation. Those are the ones weÂ’d recommend to our friends, family and anybody whoÂ’s curious and asks the question. The list that youÂ’ll find below consists of every car we rated in January that earned an EditorsÂ’ Pick. 2023 Honda Civic Type R 2023 Honda Civic Type R front low View 34 Photos Quick take: The Honda Civic Type R embodies what at means to be a hot hatch. It's the best FWD car we've ever driven, and because it's a Civic, it excels with a spacious and pretty interior, too. This is the full package. Score: 8.5 What it competes with: Toyota GR Corolla, VW Golf R Pros: Sublime driving dynamics, magical shifter, gorgeous and utilitarian interior Cons: An expensive proposition, lacks basic luxuries like heated seats From the editors: Senior Editor James Riswick — "The Civic Type R is a resolutely composed performance machine that sufficiently builds upon the delightful man-machine interfaces found in the increasingly impressive trio of Civic Sport Touring, Civic Si and Acura Integra A-Spec. ItÂ’s even more fun and capable at higher speeds, yet remains just as forgiving and easy to drive. The 2023 Honda Civic Type R sure seems all grown up. Maybe itÂ’s because IÂ’m almost in my 40s, (ugh) but I see absolutely nothing wrong with this. The Type R magic is not lost." In-depth analysis: 2023 Honda Civic Type R First Drive Review: All grown up isn't so bad   2023 Toyota GR Corolla 2023 Toyota GR Corolla Circuit front three quarter low View 39 Photos Quick take: The GR Corolla is a serious performance machine that is sure to please any enthusiast with its brilliant driving dynamics. It's only let down by a cheap-feeling and small interior that doesn't lend well to daily driver duty.