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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.

BMW could have a fuel cell vehicle by 2020

The Ultimate Driving Machine may start emitting water vapor, which may not thrill gearheads but could be good for the environment. BMW may have a hydrogen fuel-cell electric vehicle to sell as soon as the end of the decade, UK's Auto Express says, citing people familiar with the process that it didn't identify. And the model will likely be sold within the i sub-brand that includes the i3 electric vehicle and the i8 plug-in hybrid. "We are working on fuel cell development, but we are not able to comment on vehicle plans at this stage or timing at this point," BMW spokesman Dave Buchko wrote in an e-mail to AutoblogGreen on Thursday. Chatter about a potential BMW fuel-cell vehicle has been getting louder in recent months. Late last year, Autocar reported that BMW was mulling using Toyota's fuel-cell system for a version of what would be called the i5 (all the better to quietly cruise the interstate running up and down the West Coast, we guess). BMW and Toyota have been working together on accelerating the development of fuel-cell technology since 2013. Toyota has since made good on the effort of selling fuel-cell vehicles by introducing the Mirai in Japan last year and is preparing to start sales in California later this year. But BMW has been mum, so far. Featured Gallery 2014 BMW i3: First Drive View 33 Photos News Source: Auto Express via Hybrid CarsImage Credit: Copyright 2015 Sebastian Blanco / AOL Green BMW Toyota Hydrogen Cars i5

400-hp Toyota Hybrid-R Concept gets second teaser

Toyota has released a second teaser of its Hybrid-R Concept, along with an estimation of the show car's power output. Using technology that's "similar to that used by Toyota Racing's TS030 Hybrid race car," the concept is expected to deliver over 400 horsepower.
The press release also mentions that the new concept is based on a current production model. While it's difficult to tell from the sole teaser image of the car's body, rumors are flying that it's related to the Yaris. If that's the case, though, it's difficult to know what to make of this concept. The teaser image is quite dark, but we played around with the exposure and came up with an image that reveals more details about the new concept. Take a look at the related gallery, below, to see the high-exposure image. We'll find out for certain what the Hybrid-R is in a few weeks at the Frankfurt Motor Show. Let us know what you think Toyota's newest concept is in the comments.