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These are the 'Greenest' and 'Meanest' cars in 2015

As has become tradition, the American Council for an Energy-Efficient Economy (ACEEE) has come up with a ranking of what it refers to as the "greenest" cars of 2015, and, by way of contrast, a list of the so-called "meanest" cars, so those who value eco-friendliness over all else can choose which vehicles they should or should not consider buying. As you may expect, electric cars make up the majority of the greenest cars on the list, but, perhaps surprisingly to many, the Tesla Model S didn't make the cut. It's worth noting, too, that where the electricity an owner uses to charge their electric vehicle has a big impact on its overall environmental impact. "A car that is charged using electricity generated from natural gas or renewables is going to have significantly less impact on the environment than one charged on a coal-heavy grid," says ACEEE lead vehicle analyst Shruti Vaidyanathan. The ACEEE's list for 2015 looks very different than it did in 2014. It's an interesting collection, though – and we're sure this goes without saying, really – we'd recommend doing a bit more research into each vehicle and how it might fit into your daily life before making any purchase decisions. Click here to see the ACEEE's list of the Greenest and Meanest vehicles sold in the United States in 2015. Green Bugatti Chevrolet Fiat GM GMC Mercedes-Benz Nissan RAM smart Toyota greenest greenest cars

Callaway, Lingenfelter boost Corvette Z06 way beyond 700 hp

With 650 horsepower and just as much torque on tap, few would accuse the latest Corvette Z06 of being down on power. But for those who'll always demand more, two leading Corvette tuners have just announced new tuning packages for the Z06 to boost Chevy's flagship well beyond 700 horsepower. The more powerful of the two comes from Callaway Cars, which has added a larger supercharger, a triple-action intercooler, and more to increase output to a massive 757 horsepower and 777 pound-feet of torque. The result, according to Callaway, is a 0-60 time quoted at 2.8 seconds and a quarter-mile run in 10.5. The package also includes a reshaped hood, all manner of trim upgrades, and a three-year warranty, and will set you back nearly $17k on top of the cost of donor vehicle that currently lists for $79,000. In what could only come second relative to Callaway's kit, Lingenfelter Performance Engineering has also released a Stage 1 package for the Z06. The kit includes a new dry sump damper, upgraded supercharger pulley and drive belt, and more – all of which Lingenfelter says will boost the Vette's output up to 720 hp and 730 lb-ft. Revised performance figures weren't released, but despite the 37-horse, 47 lb-ft deficit, we doubt it'd trail Callaway's by much. But both would likely leave the stock Z06 in their dust, and you can read more about them in the press releases below. Related Video: Callaway Cars Releases Their Most Powerful Corvette - 757 bhp / 777 lb-ft - Z06-based Corvette upgrade boasts 32% larger supercharger, triple intercoolers, and consistent power - lap after lap The Numbers - Callaway Cars today announced power numbers and performance for the flagship model in their performance car lineup. Equipped with Callaway's GenThree Supercharger, the Corvette Z06 now produces 757 bhp @ 6,200 rpm and 777 lb-ft @ 4,500 rpm (SAE). A launch to 60 mph is now achieved in 2.8 seconds, and a quarter-mile in 10.5 seconds at 131 mph. Why Go Big, When You Can Go Bigger? - Size Matters. To reach that power (which is up from 650 bhp / 650 lb-ft) the supercharger itself needed to be bigger since the output of a positive displacement supercharger is proportionate to its size. The Callaway GenThree supercharger is 32% larger in displacement (2300cc vs 1740cc). Cooling - Callaway engineers recognize that a key contributor to maximizing power is reduction of inlet air temperature associated with forced induction.

2020 Ford Explorer vs 3-row crossover rivals: How they compare on paper

The 2020 Ford Explorer has finally landed, and if history serves as an indicator, it should be bigger than sliced bread. And people sure love themselves some sliced bread. This new Explorer may look familiar on the outside, but beneath the skin is a radically new rear-drive platform related to the Ford Mustang (as opposed to a front-drive platform related to the Ford Taurus and a Volvo from the 1990s). Turbocharged four- and six-cylinder engines now exclusively rest under its hood, which as you'll see below, both better anything its competitors offer. Ah, but if you're curious to know how the new 2020 Explorer compares to its various three-row family crossover rivals, take a look at the chart below where we stack it up against the 2019 Chevrolet Traverse, 2019 Honda Pilot, 2020 Hyundai Palisade, 2019 Subaru Ascent and 2019 Toyota Highlander. There are others of course (Mazda CX-9, Dodge Durango, GMC Acadia, VW Atlas), but we only had so much room on the chart, and these were the newest and/or most likely to be cross-shopped with the new Explorer. Engine specs and towing Although the Traverse's V6 just nips it on horsepower, the 2020 Explorer's base 2.3-liter "EcoBoost" turbocharged four-cylinder engine smokes it on torque. Therefore, "best-in-class" power seems like a fair claim from Ford. That there's also a 365-horsepower turbo V6 available, plus a hybrid and even-more powerful ST model on the way shows that Ford isn't kidding around under the hood. Curb weight also seems competitive for the segment. In terms of drivetrain, the Explorer is the only member of this particular group to come standard with rear-wheel drive (2.3-liter only). The Durango is the only other three-row, non-luxury crossover to do so. This is significant for two reasons: First, you could potentially do a power slide in an Explorer. Second, and more important, those in the Snowbelt will have to opt for all-wheel drive (it comes standard with the 3.0-liter). By contrast, a set of winter tires will probably do the job just fine if you want to save some money and gas by sticking with its rivals' standard front-wheel drive. Well, except for the Subaru Ascent — that's standard with AWD. In terms of towing, the Explorer takes the cake with as much as 5,300 pounds for the four-cylinder and 5,600 pounds for the V6. Everything else tops out at 5,000, though again, the Durango is capable of besting them all thanks to its Hemi V8 engine option.