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2016 Kia Optima SX Limited Quick Spin

There are some questions that aren't easily answered. Is it possible to only eat one Pringle potato chip? Who decided the band Creed was a good idea? And why the heck isn't the Kia Optima more popular? That last one that floated through our heads as we tested the refreshed 2016 Optima. Kia sold just under 160,000 Optimas in 2015, while Ford sold 300,000 Fusions, Honda shipped 355,000 Accords, and Toyota moved 429,000 Camrys. The Optima's low numbers didn't make sense then, and they certainly won't make sense when sales figures for the refreshed 2016 model roll in. For the third-generation Optima, Kia applied its trademark exterior design to a segment-leading interior and one of the most comfortable driving experiences in the segment. The result is a damn fine family sedan that really ought to help Kia find its way into a lot more driveways. Driving Notes We can debate the value of top-trim family sedans until we're blue in the face, but in the case of the Optima, you want the SX Limited that we tested. It's one of the only ways to score Hyundai/Kia's stout 2.0-liter, turbocharged four-cylinder engine (the other is the $30,515 SX). At 245 horsepower and 260 pound-feet of torque, it's down on output for model year 2016 – the 2015 model had an extra 27 hp and 9 lb-ft of torque – but gains two miles per gallon in the city and one on the highway, for a total of 22 and 32 mpg, respectively. Should we lament the loss of power? That's what we did when Kia first showed the 2016 Optima at the 2015 New York Auto Show. On the road, though, it's tough to pick out the drop in output. Nine pound-feet is negligible, and unless you're regularly playing in the high part of the rev range, you won't miss the extra power. The Optima pulls hard from a standstill, developing peak torque between 1,350 and 4,000 rpm. It'll get to 60 in what we guesstimate is the high six-second range. Yes, that is slower than both the six-cylinder Toyota Camry and Honda Accord, two sedans that are also lighter than the 3,600-pound Kia. Let's remember that these are family sedans, though, and the broad torque peak (and improved fuel economy) will be more important to your average consumer than the stopwatch figures. The Optima is more fuel efficient than the Japanese V6-powered competitors. Barely. And only in the city. That means the 2.0-liter's fuel economy has improved incrementally, not massively.

Are old airbags killers?

Takata airbags may not be the only ones with some very serious problems. A new report from TheDetroitBureau.com claims that the National Highway Traffic Safety Administration has opened its second investigation into bad airbag inflators, and this time, they aren't from Takata. The focus of this latest case is on the airbag inflators in some 500,000 older Chrysler Town and Country minivans and Kia Optima sedans, all of which come from ARC Automotive. While the Takata case looks at problems stemming from the engineering and production process, the ARC investigation focuses on the age of the inflators. As TDB explains, airbag inflators are essentially what the military refers to as shaped charges, sort of like Claymores (for fans of the Call of Duty series). In combat, they blow up in a specific direction, protecting those behind the explosion, although in the case of airbags, the explosion "[creates] a precise rush of hot gases" that inflate the bags. NHTSA's worry is that with the increased average age of today's vehicles, years and years of being bounced, jolted, and shaken about and exposed to often-radical temperature changes have altered the nature of the explosives in these vehicles, causing too big of an explosion. "It may be a reasonable assumption that as these things age they deteriorate." – Analyst George Peterson "It may be a reasonable assumption that as these things age they deteriorate," analyst George Peterson told TheDetroitBureau.com. NHTSA boss Mark Rosekind backed up aging angle. "Cars are lasting on the road a lot longer than ever before," Rosekind told TDB, adding that seals could start breaking down. "Is aging now an issue? That's part of the investigation going on." NHTSA has only identified two "incidents" so far, although according to Center for Auto Safety Director Clarence Ditlow, there's genuine concern that there could be additional unidentified cases. "Could we have missed more? That could be the case," Ditlow told TDB, citing the misidentified deaths in the Takata investigation. Ditlow was quick to point out that, even in older vehicles, airbags are much more likely to protect than harm. "No one is saying you should disable your airbags," the safety advocate told TDB. "You're far more likely to be helped than hurt by one if they go off." At least one automaker, meanwhile, has already been advised of the investigation by NHTSA and is checking its airbags.

Hyundai and Kia will offer AI assistants in 2019 cars

Hyundai and Kia both have reputations as early adopters of in-car tech, and that's truer than ever now that voice assistants are becoming a practical reality on the road. The Korean automakers have revealed that they plan to include AI assistants in their new cars starting from 2019, with every vehicle being "connected" by 2025. As Hyundai explained, they've been working with SoundHound to create an Intelligent Personal Agent (based on Houndify) that both makes proactive suggestions (such as reminding you of a meeting) and offers remote control of both your car and your home. This sounds a whole lot like what other voice assistants do, but the car brands are counting on support for "multiple-command recognition" as the ace up their sleeve. If you tell your car to check the weather and turn on the lights at the same time, it'll do both instead of scratching its head like so many other AI helpers. You won't have to wait until 2019 to see the technology in action. Hyundai will unveil Intelligent Personal Agent at CES 2018, and it'll test a "simplified" take on the Agent in hydrogen fuel cell cars slated to drive on South Korean roads throughout the year. It's hard to say if IPA will have an advantage over companies borrowing "off-the-shelf" AI like Amazon Alexa or Google Assistant, but it's more the ubiquity that will be important -- you won't have to buy a premium-priced model to treat your car like a smart home hub.Reporting by Jon Fingas for Engadget.Related Video: Image Credit: Hyundai Auto News CES Hyundai Kia Technology Emerging Technologies CES 2018