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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

Buy a V8 Mercedes-Maybach, or splurge for a V12? Oh to have such problems

There's a certain air that surrounds the Maybach badge, and it's not just the scent being pumped out by the ionizer in the car's glovebox. It's the cream of the crop when it comes to German luxury. These cars are filled with an acre's worth of wood and a herd's worth of cows, ensuring your fingers rarely touch materials as pedestrian as plastic. It's as quiet, as smooth, and as imposing as you think it would be. Though the latest model from Mercedes-Maybach, the S550, might have swapped in a V8 and all-wheel drive in place of the V12 at the heart of the S600, no other amenities have been lost in translation. The car's size gives it a certain presence. Staring at the profile shows a wheelbase that spans two counties, necessitating a microphone and speaker setup simply so that the driver can converse with the passenger – and a Maybach will almost always have a passenger. No one buys a Maybach to drive. You buy a Maybach to be driven. No means of transport short of business-class airline seating offers this much space. Sit back, recline the seat, roll up the shades and enjoy your $167,125 cocoon. But you know all of that already. What you really want to know is if $25,000 - the V12-powered S600 starts at $192,225 - is worth it to gain an extra four cylinders, 74 horsepower, and 96 lb-ft of torque. On paper, no, it's not. The two cars have identical performance numbers, and the S550 benefits from Mercedes' 4Matic all-wheel-drive system. Even with all-wheel drive, the S550 weighs less than the nose-heavy S600. Fuel economy is, as expected, superior in the S550. It's rated at 16 city, 24 highway and 19 combined as opposed to 13 city, 21 highway, and 16 combined. Visually, the two cars are identical save for a few badges. The V12 badge on the S600 is replaced with a 4Matic badge on the S550, and that's where things start to get murky. When you're spending six figures on a car, decisions become more emotional than practical. $25,000 is a lot of money, but there's a bigger difference between $25,000 and $50,000 than there is between $167,000 and $192,000. As stated, you don't buy these cars to drive. Performance needs to be merely adequate. A smooth, torquey V12 is likely preferable to a hairy-chested V8, refined as it may be. These cars will never touch redline, lest the passengers spill their champagne. Plus, that V12 badge is worth its weight in country club memberships. Driving an S550 is fine until an owner shows up at an event behind an S600.

Race Recap: 2016 Austrian GP is mishaps from start to finish

At the 2015 US Formula 1 Grand Prix, rain mixed up the grid and a first-lap incident cast the die for the race. The Austin, Texas event made highlight reels for those reasons and because it decided the Driver's Championship. At the 2016 Austrian F1 Grand Prix, rain mixed up the grid and a last-lap incident cast the die for the race. The Spielbergring race will feature in this year's highlight reel because it might force Mercedes-AMG Petronas to make some hard decisions about the rest of the season. For the first time this season, Lewis Hamilton converted pole position into a lead through Turn 1, and began slowly pulling away from the field. Teammate Nico Rosberg started from sixth because of a gearbox penalty, but was up to third when he pitted on Lap 11. Mercedes normally pits the lead driver first, in this case being Hamilton, but Mercedes wanted to get Rosberg ahead of the two Ferraris. Hamilton pitted on Lap 22, emerging behind Rosberg because of a slow stop. Sebastian Vettel led the race for Ferrari on Lap 27 when his right rear tire exploded coming down the start-finish straight – an eerie reminder of the 2015 Belgian Grand Prix. The Safety Car rolled out, yet when racing resumed Rosberg stayed ahead. After the two Mercs came in for second stops everyone expected Hamilton to lead, but Hamilton had messed up his in-lap and lost a cumulative 3.3 seconds during his actual stops compared to Rosberg's pit-stop times. The Brit remained second. Hamilton chased his teammate for the final 15 laps. At the beginning of the last lap Rosberg messed up Turn 1 and Hamilton closed in. Rosberg took the inside line into Turn 2 as Hamilton pulled up on the outside, then Rosberg appeared to drive straight on as if he simply wasn't going to turn. Hamilton turned in, colliding with Rosberg and driving over the German's front wing. By the end of Turn 2, Hamilton had the lead and Rosberg had a broken car. The Brit won, the German puttered home to finish fourth. The incident promoted Max Verstappen to second and Kimi Raikkonen to third. Verstappen scored his second podium for Red Bull after his victory in Spain. Conversely, Raikkonen's third place for Ferrari was more gifted scraps for the scuderia. Daniel Ricciardo came fifth in the second Red Bull, Jenson Button delivered a terrific sixth for McLaren- Honda, Romain Grosjean got Haas back in the points, Carlos Sainz, Jr. secured eighth for Toro Rosso, and Valtteri Bottas in ninth for Williams.