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Hyundai CVVD engine brings another dimension to valve timing

A new technology from Hyundai Motor Group places another marker on the march to more efficient internal combustion engines. Called Continuously Variable Valve Duration, the innovation permits two options for how long the intake valves remain open during the combustion cycle. The feature adds a third take on valve chicanery, atop variable valve timing that changes when valves open, and variable valve lift that changes how far valves open. Hyundai says the feature returns a 4% improvement in performance, a 5% increase in fuel economy, and lowers emissions by 12%. Hyundai applied for two patents on the valvetrain process in South Korea in 2011 and again in 2015. The altered valve duration in this latest iteration is made possible by two movable arms inside the camshaft. Each arm is anchored at its base to a pin at the center of the camshaft, while the end of each arm extends toward the edge of the camshaft. Changing the position of the pin in the center of the camshaft changes the angle of the arms relative to one another, which moves the camshaft along its mounting rod. Voila, a new intake cam profile that either lengthens or shortens valve overlap.   During low-speed spells at low load, CVVD opens the intake valve from the middle to the end of compression stroke. The weaker detonation isn't a factor at low load, and the reduced friction during compression improves fuel economy. During heavy engine loads, the intake valve closes at the beginning of the compression stroke to maximize the amount of air mixed for detonation, boosting torque. Four additional features enhance the benefits of CVVD. A more powerful direct injection system increases fuel spray pressure from 250 bar to 350 bar. Hyundai doesn't go into details on its Integrated Thermal Management System, but says the ITMS "quickly heats or cools the engine to the optimal temperature." Low-friction components lower overall engine friction by 34 percent. And a low-pressure exhaust gas recirculation layout diverts low-pressure exhaust gas from the traditional EGR route to the turbocharger compressor under high load for better fuel efficiency.   The first engine to boast the new tech is the Smartstream G1.6 T-GDi four-cylinder, which produces 180 horsepower and 195 pound-feet of torque. It will appear in the 2020 Hyundai Sonata Turbo going on sale in South Korea later this year.

Super Bowl LVII car commercial roundup: Watch them all here

Fewer automakers than usual spent money advertising during Super Bowl LVII. In total, there were only five traditional ad spots from three big OEMs. A number of car-adjacent ads aired during the Big Game, too, and we’ll bring you those ads in this roundup alongside the more obvious ones. WeÂ’ve compiled all of the automotive-related commercials for you here in this post so you donÂ’t have to go searching for them elsewhere. Read on below to see what aired as the Kansas City Chiefs defeated the Philadelphia Eagles. Ram's Super Bowl spot offers a cure for 'Premature Electrification' This commercial revealed the new electric Ram Rev pickup, and itÂ’s themed like a prescription ad for an antidote to "Premature Electrification.” A concerned narrator in the Ram spot asks if you're afraid that going electric too soon will mean "you might not be able to last as long as you like," and there's a guy on a pier who's going to need some new equipment if he wants to catch fish. We're also told there are "options being designed to extend range in satisfying ways," so if this truck isn't right for you, you have choices. All the commercial's missing is a silly medical marketing name and six seconds of speed-reading gibberish about side effects like intestinal bleeding and death. Which are two more good things. Jeep 4xe Super Bowl commercial highlights modern version of 'Electric Boogie' JeepÂ’s “Electric Boogie” commercial follows the Wrangler 4xe and Grand Cherokee 4xe in a variety of simulated off-road situations. Though fun, the soundtrack is the real star of the show. The songÂ’s original artist, Marcia Griffiths, was joined by Grammy winner Shaggy, Jamila Falak, Amber Lee, and Moyann on the track. The modernized re-recording celebrates 40 years since GriffithsÂ’ original track, and Jeep says the track is available for streaming now. Kia returns to the Super Bowl with the tale of 'Binky Dad' This year, Kia follows the adventure of "Binky Dad" in his quest to fetch his daughter's lost pacifier, which naturally takes him over just about every bit of terrain you might encounter upon leaving the civilized confines of Southern California for the not-so-civilized mountains of ... probably also California. It features the refreshed 2023 Kia Telluride, which probably doesnÂ’t need much advertising to see these days, but Kia went for it with the strong three-row SUV anyway.

2018 Kia Stinger GT AWD Review: A 1,400-mile grand tour in Kia's grand tourer

They call the 2018 Kia Stinger a GT. It's powerful and sleek with a low-slung seating position, quick steering and, even with all-wheel drive, a tail-happy nature. It looks killer in red. And with its V6-powered engine, the letters GT are even festooned upon its liftgate. Well, that's nice, but how does it actually deliver on the grand-tourer formula of rapid, comfortable and stylish transportation? Well, to find out, I put the Stinger GT to a grand-touring test. Starting in the western Rockies and the remote ski town of Crested Butte, Colo., my destination would be home in Portland, Ore. The Google-suggested way is 18 hours on mostly Interstates 70, 15 and 84. However, interstates are boring and are better suited to a perfectly capable but utterly soulless family transportation appliance. A proper grand tour should include two-lane highways and scenic detours, so that's exactly what I'd do. It would add hours and miles, but also, most hopefully, a vastly more memorable experience. Well, as my photos will attest, the scenery didn't disappoint. And, as you'll see in the videos, neither did the Stinger. Episode 1: Setting Off Episode 2: It's a hatchback! Crested Butte, Colo., to Moab, Utah Crested Butte is way off the beaten path, a charming mountain village deep in the western Colorado Rockies mostly free from the usual uber-commercial, Disney-like feel of ritzier, easier-accessed ski towns. Its main street thoroughfare, authentically Western rather than engineered to be so, is surrounded by scattered subdivisions and majestic mountains beyond. It had been buried in 9 feet of snow just a few weeks prior. The local citizenry didn't seem particularly bothered by that. Though most of that 9 feet had melted, the ground was still very much white, requiring the Stinger GT to shed its usual summer rubber in favor of Michelin Pilot Alpin PA4 winter tires. These are specifically intended for performance car applications like the Stinger, sacrificing just a smidge of icy traction in favor of superior handling and steering feel when on dry pavement. There's no need to delay the verdict here: after 1,400 miles, the Stinger felt just as generally compelling and dynamic on the Alpins as when I drove it last November in Southern California on summer tires. The other half of the Stinger's snow defense is the GT's optional all-wheel-drive system, which adds $2,000 to its price tag (as-tested $52,300).