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Fourth-gen Mazda MX-5 Miata could get turbo power later in life

While there's a lot to love about the new Mazda MX-5 Miata, its debut was met by a vocal group of enthusiasts who derided the fourth-generation roadster's reduction in power output. The new model only puts out 155 horsepower, down from 167 in the NC. A report from Australia, though, claims Mazda may yet address the less potent output of the ND. Things started earlier this year, as Motoring.com.au tells it, when Mazda's global PR boss, Kudo Hidetoshi, hinted that a turbocharged or Mazdaspeed model "will definitely" be considered. Then last month at Goodwood, the ND's program manager, Nobuhiro Yamamoto, said complainers were welcome to get their thrills elsewhere. Recognizing this contradiction among Mazda's brass, Motoring asked Yamamoto-san again about his statements, which he seemed to walk back. "It's not a conflict [between statements made by Yamamoto and Hidetoshi]," Yamamoto said, indicating that his statements were made in relation to the new MX-5's launch. "Kudo-san talked about this in terms of a 10-year lifespan, but when I was asked the question right after the launching of the ND, I said 'we have no plan to have a turbo at that point in time.' That is what I meant." Seeking an opening, Motoring pushed the Japanese engineer on the chances of a more potent MX-5, perhaps without a turbocharger. "If you could achieve what we want, to which is great response, very light and powerful with great performance feel with natural aspiration, then we don't need a turbo," Yamamoto said. "But if we want more power because we don't get satisfied with natural aspiration then we may think about the turbo." Related Video:

2021 Hyundai Elantra vs. compact sedans | How they compare on paper

Despite the rising popularity of crossovers, the sedan market remains packed and fiercely competitive. It looks like it will stay that way with the introduction of the strikingly redesigned 2021 Hyundai Elantra. And since Hyundai was kind enough to provide plenty of specifications on the new car, we figured we ought to see how it stacks up to some of the latest and greatest small sedans on the market. For this comparison we picked the two best-sellers, the Honda Civic and Toyota Corolla, one of the other recently redesigned sedans, the Nissan Sentra, and a perennial enthusiast favorite, the Mazda3. Below you'll find a chart with all the raw numbers for your perusal. Following that will be our usual break down and analysis of the numbers and any other noteworthy features not included in the chart. Performance and Fuel Economy While the design and chassis are all-new on the Elantra, the base powertrain isn't. It uses a version of the naturally aspirated 2.0-liter four-cylinder shared throughout the Hyundai and Kia line-ups, and it's again paired with a CVT. With 147 horsepower and 132 pound-feet of torque, it's the second least powerful entry for conventionally-powered sedans, only ahead of the sluggish 1.8-liter base engine in the Toyota Corolla. For those looking for a peppy small sedan, the Mazda3's naturally aspirated 2.5-liter has the most power and torque, even ahead of the turbocharged Honda Civic's 174 ponies. On the other hand, the Elantra, which Hyundai says will have better fuel economy than the outgoing model, should get at least 36 mpg combined, and probably better, making it the most efficient non-hybrid of this group. For the best blend of power and efficiency, the Civic is likely the way to go, as its turbo engine can return 36 mpg combined in lower trims. If you want a manual transmission in this body shape, only the Civic and Corolla offer it. A manual transmission is available on the Mazda3 hatchback, and the turbo Civic can also be had with a manual in hatchback or Si forms. A new powertrain for the Elantra is the hybrid. It's unique compared to other hybrids in that it's coupled to a six-speed dual-clutch transmission, rather than an electronically controlled CVT (which is not the same thing as a CVT) or something too complicated to describe in this sentence (the Honda Insight).

Asian automakers still reluctant to use more aluminum

There's a logical progression of technology in the auto industry. We've seen it with things like carbon-ceramic brakes, which use to be the sole domain of six-figure sports cars, where they often cost as much as an entry level Toyota Corolla. Now, you can get them on a BMW M3 (they're still pricey, at $8,150). Who knows, maybe in the next four a five years, they'll be available on something like a muscle car or hot hatchback. Aluminum has had a similar progression, although it's further along, moving from the realm of Audi and Jaguar luxury sedans to Ford's most important product, the F-150. With the stuff set to arrive in such a big way on the market, we should logically expect an all-aluminum Toyota Camry or Honda Accord soon, right? Um, wrong. Reuters has a great report on what's keeping Asian manufacturers away from aluminum, and it demonstrates yet another stark philosophical difference between automakers in the east and those in the west. Of course, there's a pricing argument at play. But it's more than just the cost of aluminum sheet (shown above) versus steel. Manufacturing an aluminum car requires extensive retooling of existing factories, not to mention new relationships with suppliers and other logistical and financial nightmares. Factor that in with what Reuters calls Asian automaker's preference towards "evolutionary upgrades," and the case for an all-aluminum Accord is a difficult one. Instead, manufacturers in the east are focusing on developing even stronger steel as a means of trimming fat, although analysts question how long that practice can continue. Jeff Wang, the automotive sales director for aluminum supplier Novelis, predicts that we'll see a bump in aluminum usage from Japanese and Korean brands in the next two to three years, and that it will be driven by an influx of aluminum-based vehicles from western automakers into China. Only time will tell if he's proven right. News Source: ReutersImage Credit: Sean Gallup / Getty Images Plants/Manufacturing Honda Hyundai Mazda Nissan Toyota Technology aluminum