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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

Sales start for $146,000 Mercedes-Benz S500 Plug In Hybrid

Mercedes-Benz's first production plug-in hybrid is chock full of astounding numbers, including the price tag. The base price is 108,944.50 euros, or about $146,000 US. If that didn't make your eyes glaze over, the Daimler division is ready to take your down payments now that the Mercedes-Benz S500 Plug-in Hybrid is officially on sale. Deliveries to European dealerships start in September. Details on the PHEV sedan were divulged last August and it was first shown off at last year's Frankfurt Motor Show. Benz calls it the, "first luxury saloon with the performance of a V8 and the fuel consumption of a compact model." That's no exaggeration. The car's powertrain that pairs a 3.0-liter V6 twin-turbo with an electric motor that delivers 436 horsepower and a 0-62 mile per hour acceleration time of just 5.2 seconds. Top speed is 155 miles an hour. On the green side, the car can go as far as almost 21 miles on electric power alone and gets a fuel-efficiency rating, on the more lenient European driving cycle, of 84 miles per gallon equivalent. The car also includes a so-called COMAND navigation system that tweaks how the electric motor is used based on the driver's desired route. Very high-tech. We've got Mercedes-Benz's press release below. Sales release for S 500 PLUG-IN HYBRID: First PLUG-IN HYBRID with a star starts With immediate effect the Mercedes-Benz S 500 PLUG-IN HYBRID can be ordered for prices from 108,944.50 euros[1]. The S 500 PLUG-IN HYBRID blends an ultramodern hybrid drive configuration with the unique innovations and the luxurious equipment and appointments of the S-Class. The luxury saloon with a long wheelbase impresses with unique dynamism and efficiency. Thanks to standard pre-entry climate control it also offers unique climate comfort. In September the first certified three-litre luxury saloon in the world will be arriving at the dealers - a further milestone on the road to emission-free mobility. "The new S 500 PLUG-IN HYBRID offers our customers the entire range of innovations that make our new S-Class so successful, and thanks to its intelligent operating strategy ensures outstanding driving pleasure and dynamism combined with the highest efficiency. Moreover, it allows completely emission-free driving for up to 33 km," says Ola Kallenius, Executive Vice-President for Sales at Mercedes-Benz Cars. "The S 500 PLUG-IN HYBRID is the first luxury saloon with the performance of a V8 and the fuel consumption of a compact model.

VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.