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2019 Mazda MX-5 Miata's more horsepower will cost less money

Mazda has already announced a power upgrade for the 2019 MX-5 Miata roadster after engineers tweaked the Skyactiv-G 2.0-liter inline-four for 17 percent more power and higher fuel efficiency than the outgoing 2018 model. Now we know the starting price for the soft-top version: $26,625, including destination charge, which is a $915 drop from the lowest-priced 2018 model. As is standard across the Miata lineup, output increases by 26 horsepower to 181 hp, with torque nudging up 3 pound-feet to 151 lb-ft at 4,000 rpm. Other new features also track with the changes previously announced for the 2019 Miata RF, including the telescoping steering wheel and standard rearview camera. But the soft-top version gets an available brown soft top for an extra $200 for the Grand Touring trim (a black soft top is standard), new package options at each trim level and optional traffic-sign recognition and smart city brake support, which offers automatic emergency braking at low speeds. Also new is that steering column, which is made of aluminum to save weight. Mazda will keep the six-speed manual as an option for all three trim levels, with an available six-speed automatic with paddle shifters and Sport driving mode. Standard features include LED head- and taillights, 16-inch wheels, Mazda Connect infotainment with a 7-inch touchscreen monitor, Bluetooth phone pairing and audio streaming, and keyless entry. Jump up to the Grand Touring trim starting at $31,675 and get 17-inch dark silver wheels, body-color interior trim, auto on/off headlights, auto-dimming driver's side mirror, rain-sensing windshield wipers, heated, leather-trimmed seats and a nine-speaker Bose Premium audio system, among other things. Mazda is also offering a $550 GT-S Package on the Grand Touring model with the six-speed manual, a front shock tower brace, limited-slip rear differential and Bilstein dampers. MX-5 Club models start at $30,485 and come standard with the GT-S Package goodies when equipped with the manual transmission. Automatic versions get standard heated cloth seats with contrasting red stitching, body-color interior trim, black 17-inch wheels, front air dam and rear lip spoilers.

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.

Five automakers now being investigated by NHTSA for airbag woes

It appears that Toyota's renotification to owners of recalled vehicles from last year is just the tip of the iceberg for what could potentially be a much larger industry-wide recall. The National Highway Traffic Safety Administration is opening a preliminary evaluation investigation into roughly 1.1 million vehicles from Chrysler, Honda, Mazda, Nissan, Toyota and parts supplier Takata regarding faulty airbag inflators in several models.
NHTSA has received six reports - three directly, two from Takata and one from Toyota - of vehicles with ruptured airbag inflators from 2002-2006, which resulted in three injuries. So far, all six incidents have occurred in high humidity areas like Florida and Puerto Rico. According to Toyota's latest recall announcement, the inflators may have an improper propellant that could cause it to rupture in a crash and the bag to deploy abnormally.
This new investigation follows a previous recall from April 2013 of about 3.4 million vehicles worldwide for the airbag inflators from Takata. As Autoblog reported, Toyota jumpstarted the new situation when it found that the original list of serial numbers for the faulty part was incomplete and discovered more cars in need of replacement. Honda and Nissan told us that they were investigating whether further models would need called in again as well. Mazda told Autoblog: "Regarding the current Takata situation, we're working closely with NHTSA and investigating the situation, but nothing else to report at this time." Chrysler Group responded to us with the statement: "Chrysler Group engineers are conducting the appropriate analysis. The Company will cooperate fully with the National Highway Traffic Administration."