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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.

2021 Mazda6 gets small price increase and updates, and that Carbon Edition

Mazda's blowing a soft breeze of change over the 2021 Mazda6. We already knew the Japanese automaker has included the sporty sedan in its batch of Carbon Editions, along with the 2021 Mazda CX-5 and Mazda CX-9. The trio feature an exclusive Polymetal Gray exterior hue with blacked-out trim and a black metallic finish for the wheels. while the interior shouts in red leather with black accents. We now know the Carbon Edition is based on the fourth-highest trim, the Grand Touring Reserve, adding just $275 to the price of that trim in standard guise. Pricing for the entire 2021 range and differences to 2020 after the $945 destination charge are: Mazda6 Sport $25,270 ($225) Mazda6 Touring $27,870 ($225) Mazda6 Grand Touring $30,970 ($225) Mazda6 Grand Touring Reserve $33,470 ($225) Mazda6 Carbon Edition $33,745 Mazda6 Signature $36,695 ($350) Two of the three premium paint choices go up in price as well. Snowflake White Pearl Mica will cost $395 instead of $200, Machine Gray Metallic goes from $300 to $495. Soul Red Crystal Metallic holds steady at $595. At the entry-level, the Sport adds Android Auto and Apple CarPlay to its list of standard equipment, meaning the infotainment feature is now standard across the lineup. Everything holds steady until the Mazda6 Grand Touring, which adds a "Turbo" badge at the back for distinction, and wireless Apple CarPlay inside. Mazda didn't say so, but we're guessing wireless Apple CarPlay will be available on trims above the Grand Touring as well. Under the hood, the 2.5-liter turbocharged Skyactiv-G four-cylinder gains 10 pound-feet of torque when filled with 93 octane, producing the same 250 horsepower but an improved 320 lb-ft. On 87 octane, the engine makes 227 hp and 310 lb-ft.  The 2021 Mazda6 misses out on the new infotainment system shared with the Mazda3, CX-30, and CX-5, and the diesel and all-wheel drive options still haven't decided to come out of their hiding places. The sedan is expected on dealer lots later this month or early next. Related Video:    

We drive the 2025 Porsche 911 T-Hybrid, updated Miata and Lamborghini Urus | Autoblog Podcast #841

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Road Test Editor Zac Palmer. This week, they discuss driving the 2025 Porsche 911 GTS T-Hybrid and the base 911 Carrera. Once they wrap up the Porsche section, the two chat about their driving experiences in the updated 2024 MX-5, refreshed Lamborghini Urus S and the Mercedes EQE 350+ SUV. After the reviews, it's time for some current events, as the two dig into the Goodwood Festival of Speed highlights, news of a redesigned Hyundai Palisade, an upcoming electric three-row Hyundai SUV and Audi's new A5 and S5 models. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #841 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Cars we're driving 2025 Porsche 911 GTS T-Hybrid 2025 Porsche 911 Carrera 2024 Mazda MX-5 Miata 2024 Lamborghini Urus S 2024 Mercedes-Benz EQE 350+ SUV News Goodwood Festival of Speed recap Hyundai Palisade spy shots Three-row electric Hyundai SUV 2025 Audi A5 and S5 revealed Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related Video:  2025 Porsche 911 GTS gets new T-Hybrid: Sneak peek at the 992.2   This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.