2012 Mazda Mx-5 Miata Special Edition Power Hard Top on 2040-cars

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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.

Super-rare Mazda MX-5 Miata coupe pops up for sale

It's somehow fascinating that one of the most interesting developments of Mazda's MX-5 Miata roadster is the one that isn't a roadster at all. Unlike the NC and ND generations with retractable power hardtops, the second-generation NB Miata got a special coupe version with a fixed roof, done in the style of the first-generation coupe concept. We're talking very limited production numbers: just 179 of these NB coupes were made, and they were all Japanese-market models, so it's not often that one comes up for sale. Except now. Itself even more of a limited-edition car, this sportier Type S version residing in Hong Kong and advertised on Pistonheads is one of just 63 made. It's right-hand-drive, as both its Japanese market origins and Hong Kong regulations dictate, and out of the available engine variations it comes with the 1840cc unit and a six-speed manual gearbox. What's more, despite its low 30,000 miles, the 2004 fixed-roof Miata is said to be fully overhauled and restored to as-new condition. We can't imagine those coupe-specific parts such as glass and trim are easy to source, so with these extremely rare cars it's probably best to go with the best condition example you can find, if you can find one to begin with. Rust hits all old Miatas at some point. With that backdrop, the GBP30,000 ($38,700) asking price doesn't seem all that unreasonable. With the Miata's enormous enthusiast base, there are now aftermarket solutions that imitate the flowing lines of the rare factory coupe, but they do lack the strengthening that Mazda's specialty skunkworks shop put in these — and the body-stiffening roof adds a mere 22 pounds to the car's dainty overall weight. For some lucky Miata hobbyist, this particular red coupe might be the crown jewel of their roadster collection. Related Video:

Autoblog Minute: Highlights from the 2015 Tokyo Motor Show

The 44th Tokyo Motor Show is here with plenty of exciting new car reveals, like the stunning Mazda RX-Vision concept and the wild Nissan Concept 2020 Vision Gran Turismo. Autoblog's Chris McGraw reports on this edition of Autoblog Minute, with commentary from Autoblog's Managing editor, Steven Ewing. Show full video transcript text [00:00:00] The 44th Tokyo Motor Show is here with plenty of exciting new car reveals and lots of tech-heavy concept vehicles. I'm Chris McGraw and this is your Autoblog Minute. The Tokyo Motor Show opens to the public but for those unable to make it to Japan Autoblog is on hand to report. For more we go on location to Tokyo and Autoblog's Managing editor, Steven Ewing. [00:00:30] - [00:01:00] [Steven Ewing Interview] And that's your recap of the 44th Tokyo Motor Show, for our detailed coverage of the event be sure to head to Autoblo.com/tokyo-motor-show. For Autoblog, I'm Chris McGraw. [00:01:30] [Outro] Autoblog Minute is a short-form video news series reporting on all things automotive. Each segment offers a quick and clear picture of what's happening in the automotive industry from the perspective of Autoblog's expert editorial staff, auto executives, and industry professionals. Green Tokyo Motor Show Mazda Subaru Suzuki Coupe Concept Cars Autoblog Minute Videos Original Video Tokyo 2015