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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

Race recap: 2015 Singapore Grand Prix full of odd sideshows

What greeted the Formula One teams in Singapore? Confusion. The haze was so thick that observers wondered if the race would be held at all. Then practices began, and Mercedes-AMG Petronas driver Nico Rosberg took the first one, but the team fell away after that. Mercedes said it couldn't get the tires turned on, but no one believed the Silver Arrows was in genuine trouble. Then qualifying set the confusion in stone. Ferrari driver Sebastian Vettel laid down the best time in Q3, taking the team's first pole position since Germany in 2012. Daniel Ricciardo got his Infiniti Red Bull Racing into second, about one tenth behind Vettel. (That may make the team feel better after Ricciardo publicly asked for a better engine than the current Renault unit, and team advisor Helmut Marko said the outfit will quit F1 at the end of this year if it can't get a stronger powerplant for 2016.) Kimi Raikkonen put the second Ferrari in third, Daniil Kvyat put the second Red Bull in fourth. And only then came the Meredes'. Lewis Hamilton's best got him fifth, the Brit saying, "We don't really know what we have got wrong. For some reason the tires are not working on the car. We do the warm-up the same as everyone else and then you see someone one second up the road." For added emphasis on the reversal of fortune, his time was 1.6 seconds behind Vettel's. Teammate Rosberg is next to him in sixth, a further half a second back. Williams is still a hurting a bit on slow tracks, so Valtteri Bottas could only get into seventh ahead of Max Verstappen in the Toro Rosso and teammate Felipe Massa in ninth. When the red lights went out, the 2015 Singapore Grand Prix would get both less interesting and more interesting all the way to the final lap. The men up front got good getaways, and the order into Turn 1 was Vettel, Ricciardo, and Raikkonen. The race finished with those three in that order, never having conceded position. Vettel's Ferrari enjoyed the track so much that he laid a second per lap into Ricciardo for the first five, then relaxed. He'd let the gap come down later in the race a couple of times, but any time he wanted to see what his mirrors looked like without anyone in them he'd take off again. Rosberg took fourth position after holding down sixth for the first stint. It looked like he'd have an even worse day - for a Mercedes driver - when he had problems getting his car started and onto the grid before the race.

Next Aston Vantage will be the only way to get an AMG V8 with a stick

With only a few exceptions, most of them factory customs, AMG hasn't built cars with manual transmissions. It just isn't the way things are done in Affalterbach. But now that Mercedes's in-house speed shop will be supplying engines to Aston Martin, the world will be treated to cars with three pedals and overengineered German V8s wrapped in a pretty British package. We're into it. The news comes from Car and Driver, which spoke to Aston Martin CEO Andy Palmer about the new Vantage among other things. Palmer confirms to C/D that the Vantage will continue to offer manual and automatic transmissions when the next-gen car arrives featuring the AMG 4.0-liter twin-turbo V8. In its most potent form, the eight-cylinder makes 503 horsepower and 479 lb-ft of torque in the AMG GT S. Figure on a little more from the Aston-ized version, just for fun. The current V8 Vantage GT makes 430 hp and 361 lb-ft from its naturally aspirated 4.7-liter. While some may lament the new engine's forced induction, that added power and the thoroughly modern behavior of the AMG engine should be welcome. While the AMG V8 is currently only planned to go into Aston's entry-level car, C/D does mention a possibility of it (and perhaps its three-pedal transmission) making its way into other cars as an economy option for certain markets. If a V8 DB11 were to be offered, don't expect it to show up here, though. There's also no word on who will supply the manual for the AMG-Aston mashup, but it likely will be a transaxle like the current Vantage. Ex-factory manual AMGs aren't totally unprecedented. Pagani has built some three-pedal cars with its massaged AMG V12s. Compared to those, however, these manual Vantages can be considered mass-production cars. And really, any increase in the number of sticks mated to AMG engines can only be a good thing. Related Video: News Source: Car and Driver Aston Martin Mercedes-Benz Coupe Performance mercedes-amg confirmed aston martin v8 vantage aston martin vantage