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The greenest cars of 2024: Vehicles that use the least fuel and cost less to operate

All-electric vehicles may make headlines for environmental friendliness and fuel efficiency, but the “greenest” car in America in 2024 has a gasoline engine. According to the American Council for an Energy-Efficient Economy's annual GreenerCars ratings of the most environmentally friendly cars, the latest Toyota Prius Prime SE plug-in hybrid tops the list of greenest cars, although it's something of an anomaly, because battery-electric EVs follow it in spots two to five. Of the top 10 vehicles in the ratings, six are electric and four are hybrids: Rank Make & Model Powertrain Green Score MSRP Estimated Annual Fuel Cost* 1 Toyota Prius Prime SE PHEV 71 $32,975 $529 2 Lexus RZ 300e EV 67 $55,150 $651 3 Mini Cooper SE EV 67 $30,900 $747 4 Nissan Leaf EV 66 $28,140 $741 5 Toyota bZ4X EV 66 $43,070 $689 6 Toyota RAV4 Prime PHEV 64 $43,690 $741 7 Hyundai Elantra Blue Gas Hybrid 64 $26,250 $864 8 Hyundai Kona Electric EV 63 $34,050 $695 9 Toyota Camry LE Gas Hybrid 63 $28,855 $907 10 Kia EV6 EV 63 $43,975 $689 11 Toyota Corolla Gas Hybrid 62 $23,500 $944 12 Hyundai Ioniq 5 EV 62 $41,650 $737 *ACEEE analysis using EIA data of annual cost—from gasoline, electricity, or a combination—of driving 15,000 miles The ACEEE also compiled two other vehicle rankings: the so-called “Greener Choices” and the “Meanest List.” The Greener Choices list includes a variety of high-scoring conventional vehicles, and the Meanest List identifies the worst-performing mass-market models. Finishing first in the “greener” list — which the organization says is about cars “available nationwide with among the lowest environmental impacts” — is the Honda Accord Hybrid. As far as the “worst-performing mass market” vehicle, that dubious distinction goes to the $184,000 Mercedes-Benz AMG G63. “ItÂ’s important for automakers to keep expanding affordable EV options rapidly so that the benefits of EVs are available to drivers across a wider spectrum of incomes as we transition away from cars that burn gasoline,” said Peter Huether, ACEEEÂ’s senior transportation research associate and lead researcher for the GreenerCars rankings. “For drivers whose needs are not met by todayÂ’s charging infrastructure, many efficient and affordable hybrid options are available.” Just over half the cars on the 2024 Greenest List start at under $35,000, including four EVs and three gas hybrids.

Kia Niro crossover is the company's first dedicated hybrid

Kia arrives in Chicago this week with the Niro, an all-new hybrid crossover joining the company's growing electrified lineup. It's not Kia's first hybrid, but it is the first dedicated hybrid, designed from the ground up with gasoline-electric power. Following the Niro concept from the 2013 Frankfurt Motor Show and the teaser images that followed, the production Niro joins the Soul EV and Optima Hybrid in the automaker's EcoDynamics line. Though full specifications and dimensions have yet to be revealed, the Niro rides on a 106-inch wheelbase to slot it size-wise in between the smaller Sportage and larger Sorento. The parallel hybrid powertrain mirrors that of the Ioniq – which is, in turn, parent company Hyundai's first dedicated hybrid and which we're not expecting to see in person until next month. The system pairs a 1.6-liter four with an electric motor, a lithium-ion battery, and a six-speed dual-clutch transmission. The sum total is 146 horsepower and 195 pound-feet of torque, and a projected fuel-consumption rating of 50 miles per gallon. View 18 Photos According to Kia's product guru Orth Hedrick, the company has tuned the Niro for "the best combination of outstanding mpg, an engaging driving experience, utility, and most importantly, a stunning design that doesn't shout 'hybrid'." Of course the taller, less streamlined form means it won't cut through the air like a more streamlined sedan or hatchback would, but it's still much slipperier than most crossovers: its drag coefficient of 0.29 comes a lot closer to the Ioniq's 0.24 than it does to the Soul EV's 0.35. We'll wait to see it in person before we decide how that streamlined crossover styling comes across. But for now you can scope out the full details released thus far in the press release below. ALL-NEW 2017 NIRO HYBRID UTILITY VEHICLE ARRIVES IN THE WINDY CITY FOR GLOBAL DEBUT AT CHICAGO AUTO SHOW Kia's Hybrid Utility Vehicle Boasts a Number of Firsts for the Brand, Including an All-New, Dedicated Eco-Car Platform and Unique Hybrid System • Niro is a no-compromise package, maintaining the style and appeal of a utility vehicle while offering outstanding fuel economy with a targeted 50 mpg combined • Niro challenges the hybrid-electric segment with an innovative hybrid system that directly contributes to a dynamic driving experience CHICAGO, Feb.

Hyundai and Kia introduce new predictive transmission tech

Hyundai and Kia have announced that the two have developed a new transmission control system that optimizes shift logic to both improve efficiency and reduce "gear hunting." The system utilizes real-time traffic data, built-in 3D navigation and the same sensors that feed the cars' advanced safety and driver assist tech to proactively choose the right gear — even neutral in some cases — to reduce both fuel consumption and wear-and-tear. The Korean sister brands call it the "Information Communication Technology Connected Shift System," or "ICT" for short, and Hyundai says it delivers not just improved frugality, but a better all-around driving experience. ICT programming allows the transmission control unit to collect and interpret traffic, camera, sensor, navigation route, elevation and topographical data.  "Using all of these inputs, the TCU predicts the optimal shift scenario for real-time driving situations through an artificial intelligence algorithm and shifts the gears accordingly," the announcement said. "For example, when a relatively long slow down is expected and radar detects no speed irregularities with the car ahead, the transmission clutch temporarily switches to neutral mode to improve fuel efficiency." While this sounds like a primarily green play, there are quality-of-life improvements too. For example, ICT can also optimize gear selection and shift points for safer highway merges, effectively implementing the equivalent of a "Sport Mode" driving profile when a little extra punch is called for.  Hyundai says the resulting decrease in shifts was significant; in some test scenarios, such as roads with lots of curves, the number of shifts executed by the transmission was reduced by almost half. As an added bonus, these vehicles also utilized their brakes less often (11%), which would reduce wear (and accompanying maintenance costs) over time.  ICT is somewhat future-proof, too, as it was developed to incorporate vehicle-to-vehicle (V2V) data should such networks improve down the line.  The announcement did not say when the new tech would reach customers, committing only to introducing the technology "on future vehicles." If we're betting, the smart money says it will probably on a new Genesis model and trickle down from there. Related Video: