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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.

12 best hybrid SUVs for 2022

If you're searching for the best hybrid SUV, the truth is there actually aren't that many choices. While there's an endless sea of those powered solely by gasoline, those that add batteries and superior fuel economy to the mix are few and far between. The very good news, however, is that the choices you have are actually excellent. The top-selling and top-rated Honda CR-V and Toyota RAV4 are not only available as hybrids, for instance, but are actually at their most appealing as hybrids.  Luxury hybrid SUVs are a different story. While Lexus offers each of its crossover SUVs as a conventional hybrid, those of other brands are by and large plug-in hybrids that provide a relatively brief amount of all-electric propulsion, superior fuel economy and higher prices that are somewhat countered by EV tax rebates. We include both conventional hybrids and plug-in hybrids in the below list of best hybrid SUVs. All are listed alphabetically within each category. Best small hybrid SUVs   |   Best midsize hybrid SUVs Best luxury hybrid SUVs   |   Best luxury plug-in hybrid SUVs Best small hybrid SUVs Honda CR-V Hybrid Why it stands out: Best-in-class back seat space; hybrid's distinctive EV-like power delivery; middle lower LATCH anchorCould be better: Antiquated and glitchy tech interface; a bit dull Hybrid fuel economy: 38 mpg combined (AWD only) Read our 2022 Honda CR-V Review Consider the CR-V the baseline for any compact SUV search. Objectively speaking, it's tough to beat due to its massive cargo capacity, voluminous back seat, well-balanced driving dynamics, competitive pricing and features, strong safety ratings and well-regarded reliability. In terms of its hybridness, we like that Honda's distinctive hybrid system sees most of its propulsion handled by the electric motor (the engine rarely powers the wheels directly), resulting in a more EV-like, torque-rich power delivery and a less obtrusive gas engine. For the vast majority of compact SUV buyers, and especially families, the CR-V Hybrid checks every box.    Hyundai Tucson Hybrid Why it stands out: Beautiful interior; excellent infotainment and safety technology; traditional automatic transmissionCould be better: No spare tire; styling a tad outrageous Hybrid fuel economy: 37-38 mpg combined (AWD only) Plug-in hybrid electric range: 33 miles Plug-in hybrid fuel economy: 80 MPGe Read our 2022 Hyundai Tucson Review The Tucson is the new kid in town and it's made quite an entrance.

Kia teases Geneva concept, is a Nissan Juke rival in the cards?

These four photos tell us most about the pomegranate-red concept Kia will be bringing to this year's 2013 Geneva Motor Show. An accompanying 66-word press release gives away nothing, so we're left to wonder if this is some kind of Nissan Juke rival that the South Korean company is toying with.
Even with the exaggerated dimensions of concept cars, this unnamed "urban concept car" looks somewhat larger than the average subcompact hatch, and there are some seriously Juke-ish lines around the rear three-quarter. This concept, however, appears to be a two-door model, unlike the Juke with its hidden rear handles, but that doesn't mean a production model couldn't add a couple of entry points.
We'll know for sure in March. You'll have to make the four high-res photos and those 66 words in the release below last until then.