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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

Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Queens man knows how to party, disrupts Mets game with van

A New Yorker and all-around true American hero took his weekend festivities a little too far and landed himself in front of a judge last week. According to NBC New York, Nelson Hidalgo drove his unassuming Sprinter to Citi Field on Saturday, June 18, around 10:45 p.m. While the Mets were getting thrashed by the Braves, Hidalgo pulled up to the intersection of 127th street and 35th avenue. Hiding within the van's cargo area were 80 speakers driven by powerful amps, around $20,000 worth of car audio. Hidalgo opened the Sprinter's rear doors, deployed his amazing speaker system, cracked a cold Coors Light, and unleashed hell. Noise complaints immediately started flooding in to the police, including one from the Mets' bullpen. Soon, Hidalgo amassed a sizable crowd who had come to rock out and marvel at the lunacy of the Sprinter's sound system. The NYPD showed up eventually and, undaunted by noise and the crowd, clapped the irons on poor Nelson. The Sprinter was impounded and Hildago was charged with second-degree criminal nuisance, general noise prohibition, disorderly conduct, and obstructing the driver's view. "I know it's illegal, but it's the weekend," he explained to the cops as they hauled him away. Once they had him in custody, the NYPD realized that Hidalgo was the person they had been looking for in connection with absurdly loud music coming from various city junkyards in the dead of night. Hidalgo, who has no prior record, spent the night in the slammer but was released the next morning with no bail on the promise that he return for his court date on August 1. Related Video: