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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.

Mazda3 sedan revealed by Top Gear Russia [w/poll]

Thanks to our comrades at Top Gear Russia, the trickling reveal of the Mazda3 sedan has begun. We saw the hatch in person in New York (and loved it), and we wanted to see if the trunked version could hold onto the same mojo. If you like the Mazda6, then you should like the Mazda3 because it takes just about everything from its toothsome big brother and shrinks it into a compact package.
Top Gear Russia was allowed to share photographs of the Mazda sedan they call "Treshka" (or they leaked them, depending on whom you talk to), but not their drive impressions. The site page says it will come in four trims for the Russian market - Drive, Active, Active+ and Supreme - and offer three engines. Our specifications will certainly differ. Other than that, all we have to go on are the looks, which some may argue are even better than the hatch thanks to a trunk line that provides more balance to that long hood up front.
The Mazda3 will go on sale later this year and US prices should be announced in September. For the time being, content yourself with the gallery of high-res images above.

Kiwi seniors accidentally lock themselves in Mazda3 for 13 hours, nearly die

It's an over-played trope that senior citizens are bad with technology. Its regular use as a comedic device, though, overshadows a more dire circumstance that comes when elderly citizens are paired with gizmos and gadgets they don't fully understand. A couple from New Zealand spent the night in their new, smart-key-equipped Mazda3 after thinking they'd locked themselves in, in what The Otago Daily Times called "a series of 'Murphy's Law' events." The two thought the car wouldn't function without the key fob, which had accidentally been left outside of the car, along with the owner's manual. That, along with the combination of stress, darkness and a lack of overall information about the car nearly killed Mollieanne and Brian Smith. After thinking they'd become trapped, the Smiths, 65 and 68, respectively, tried honking the horn to alert neighbors – it was Guy Fawkes Night, so the sound was drowned out by fireworks – and even took the Mazda's jack to a window in their attempt to escape. When they were discovered and freed 13 hours later, Mrs. Smith was unconscious and Mr. Smith was having trouble breathing, with emergency crews telling the couple another half hour in the car would have killed them. Mr. Smith later told The Otago Daily Times he was "very methodical," but couldn't figure out how to unlock the car. "Once I found out how simple it was to unlock it I kicked myself that I did not find the way out," the 68-year-old told The Times. "I had this mind-set that I did not have the transponder [so I could not get out]." Mazda New Zealand pointed out that is not the case. "It's not a design flaw with the car," Mazda New Zealand General Manager Glenn Harris told The Times. "What we have said to the [dealership] network is, with new technologies, don't forget to show customers how to use them in their entirety [and] how to override them. There is always a manual process to override them." Featured Gallery 2014 Mazda3 Hatchback View 9 Photos News Source: Otago Daily TimesImage Credit: Mazda Auto News Mazda Safety Hatchback Economy Cars mazda mazda3