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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

Fast doesn't begin to describe it | 2017 Bugatti Chiron First Drive

Long after the heat of the moment, I pull off the highway in rural Portugal and glance at the Bugatti Chiron's center console. As the engine cools and the carbon silicon carbide brake rotors start to dissipate heat, the onboard computer's telemetry reveals some staggering figures: A peak speed of 377 km/h (do the math, and that's 234 mph), with the quad-turbocharged W16 squeezing a max of 1,466 horsepower at 6,691 rpm. Did I just drive a car or fly a plane? The mind-boggling brain shuffle of Bugatti's latest land rocket cannot be understated, even when placed in context against the now-defunct Veyron. In ultimate Super Sport trim, the Veyron produced a stunning 1,200 (metric) horsepower. The Chiron's leap to 1,500 ponies required considerable development, testing, and re-engineering. That exhaustive process saw significant challenges, even late in the game. Consider the high-speed testing incident in South Africa: despite extensive test-bench work, real-world driving revealed that the immense exhaust heat was melting the rear bumper and nearly igniting the car. The solution, it turns out, was to add a duct so airflow from the underbody could channel through and diffuse the heat. Hashtag: #1500HorsepowerProblems. For the 500 wealthy souls who will take delivery, the $2,998,000 Chiron is most certainly an emotional purchase. But it's backed by a battery of left-brain thinking aimed at making it a quicker, smoother, more involving car than its famously controversial predecessor. For starters, only five percent of the engine's parts are retained from the Veyron, the bulk of the new parts getting strengthened, lightened, and re-engineered to better cope with the thermal demands of the heightened output. The four turbochargers are 68 percent larger and now work sequentially so the first set can facilitate a torque plateau between 2,000 and 4,000 rpm. The larger, second set of turbos extend the flat line to 6,600 rpm. The seven-speed gearbox manufactured by Ricardo, which is essentially the only dry-sump dual-clutch on the production car market, has been strengthened and reinforced to withstand the engine's thumping 1,180 pound-feet of torque. The immense drivetrain is housed by a carbon-fiber chassis by Dallara that requires 1,500 hours to build. The Chiron also gains an adaptive chassis that uses five drive modes to set ride height, steering effort, damping, and power distribution.

Bugatti might make a sedan, but definitely won't do an SUV

Hot off the reveal of the 1,500-horsepower Chiron, one would think Bugatti president Wolfgang Durheimer would be sleeping well. Apparently, he has something else on his mind. "I can't get the idea for a four-door limousine out of my head," the Bugatti chief told Bloomberg at the Geneva Motor Show. "It's one of the options we might look into again as a possible next project." "Limousine" translates to sedan in German, the native country of Durheimer, and Bugatti has floated the idea of a four door before. The 16C Galibier was shown in 2009, and rumors of its production approval (or delay) percolated for years. If Bugatti were to proceed with a sedan, it would likely draw on the resources of parent Volkswagen Group, perhaps sourcing the underpinnings and other hardware. Meanwhile, the chances of Bugatti doing a sport utility vehicle are zero, Bloomberg reported. When asked, Durheimer responded with a precise "no." He did suggest Bugatti might use electrification for future cars, though he didn't elaborate. For now, Bugatti is basking in the attention generated by the Chiron, the much-anticipated successor to the Veyron. The Chiron bowed this week at the Geneva Motor Show and will go on sale this fall with a base price of $2.6 million. Related Video: Related Gallery Bugatti Chiron: Geneva 2016 View 16 Photos Design/Style Geneva Motor Show Bugatti 2016 geneva motor show