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This map reveals the cleanest vehicles based on location

Naysayers love to point out how dirty the electricity grid mix is when it comes to charging electric vehicles. Curmudgeons are eager to jump into any conversation about EVs to enlighten the lucky listeners about how plug-in cars contribute to pollution, sometimes even throwing in a dash of climate-change denial for good measure. (Thanks, buddy. Pray, tell me more about the plight of oppressed SUV owners.) Unless someone buys an EV just because they think they're cool (which, yeah, they often are), they probably have at least a passable understanding of their environmental pros and cons. As many EV owners are already aware, location has a lot to do with any particular plug-in car's carbon footprint. Still, there's always more to know, and knowledge is not a bad thing, especially if one uses it to do the right thing. That's why this handy-dandy map from Carnegie Mellon University is so interesting. CMU researchers have compiled information about the lifecycle greenhouse gas emissions of various EVs based on where they're charged, as compared to gasoline-powered vehicles. The researchers looked at the Nissan Leaf, Chevrolet Volt, and Prius Plug-In Hybrid versus the gasoline-dependent Toyota Prius hybrid and the stop-start-equipped Mazda3 with i-ELOOP and compared grams of CO2 emitted per mile. CMU takes into account the grid mix, ambient temperature, and driving patterns. CMU takes into account the grid mix based on county, as well as ambient temperature and driving patterns in terms of miles traveled on the highway or in the city. For instance, if you drive a Nissan Leaf in urban areas of California, Texas, or Florida, your carbon footprint is lower than it would be if you were driving a standard Toyota Prius. However, if you charge your Leaf in the Midwest or the South, for the most part, you've got a larger carbon footprint than the Prius. If you live in the rural Midwest, you'd probably even be better off driving a Mazda3. Throughout the country, the Chevrolet Volt has a larger carbon footprint than the Toyota Prius, but a smaller one than the Mazda3 in a lot of urban counties in the US. The Prius and Prius Plug-In are relatively equal across the US. Having trouble keeping it straight? That's not surprising. The comparisons between plug-in and gasoline vehicles are much more nuanced than the loudest voices usually let on.

2015 Nissan Altima pricing released, V6 gets MPG bump

Nissan has announced a range of moderate enhancements for its 2015 Altima sedan, starting with a one-mile-per-gallon increase in the highway fuel economy of the top-tier, 3.5-liter V6 engine. The six-pot now returns 32 mpg on the highway and 22 mpg in the city.
The 3.5 SV and 3.5 SL, the mid and top-end six-cylinder trims, also get NissanConnect with Navigation, blind-spot monitoring and lane departure warning. Prices, though, see a commensurate increase.
The starting price for a base, 2.5-liter four-cylinder Altima has been nudged up by $130, to $22,300, not counting the $810 destination charge. The 2.5 S model is down $130, though, to $22,560. Meanwhile, the top-end four-cylinder models, the SV and SL see their prices increase by $380 and $230, respectively.

Nissan says Leaf battery packs are nearly bulletproof

Like the old 1970s Schoolhouse Rock song (and an early-90s remake from hip-hop artists De La Soul), three, indeed, is the magic number. That's how many Nissan Leaf batteries have conked out in Europe during the past four-plus years. Out of about 35,000. I'd hate to be a member of that unlucky trio. The Japanese automaker says it has shut up the naysayers who once crowed that electric motors may be less reliable than gas- or diesel-powered engines. Nissan has done so by maintaining a 99.99 percent "battery success rate" in Europe. With only an on-board charger, inverter and motor, the Leaf's electric motor costs 40 percent less to maintain that gas- or diesel-powered engines. Nissan does seem to be getting more converts across the Pond. Nissan boosted European sales of the Leaf by about 33 percent last year to more than 15,000 units. Meanwhile, here in the States, sales jumped 34 percent last year to more than 30,000 vehicles, though early 2015 sales appear to be down as lower gas prices are leading American car shoppers to larger, more gas-swilling vehicles. Still, Nissan recently said it surpassed sales of 75,000 units in the US and we expect the March sales numbers to show that the Leaf has become the top-selling plug-in vehicle in US history. Take a look at Nissan Europe's press release below. Related Videos: Nissan LEAF battery reliably outperforms cynics, critics and alternatives Five years on, Nissan reports 99.99% battery success rate across Europe More reliable than a petrol or diesel engine, according to industry averages Nissan LEAF is the world's best-selling all-electric car, with over 165,000 sold globally Rolle, Switzerland, 23 March 2015: Five years and more than 35,000 European sales since the launch of its all-electric LEAF, proprietary data released by Nissan for the first time shows that 99.99 percent of its battery units remain entirely fit for purpose. The failure rate of the battery power unit is less than 0.01 percent - or just three units in total - a fraction of the equivalent industry-wide? figure for defects affecting traditional combustion engines. To prove the long-term reliability of the battery technology, Nissan tracked down a rather infamous early model, whose owner is still enjoying fault-free motoring in her LEAF three years on: http://youtu.be/6V1bJJwJhEg Electric vehicle advocate and presenter of online TV channel Fully Charged, Robert Llewellyn commented: "This comes as no surprise.