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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.

Toyota produces millionth truck in Texas

After going online in 2006, Toyota's San Antonio, Texas truck plant has just built its one-millionth vehicle, the 2014 Tundra 1794 Edition you see above. The plant originally focused on just the Tundra pickup, but the smaller Tacoma started rolling off the line there in 2010, as well.
Fittingly, the 1794 Edition (a new premium trim level for 2014) pays homage to the property on which the Toyota plant now resides - a ranch that was founded in 1794. Scroll down for the official press release for the plant's milestone, and be sure to check out the full gallery of Tundra 1794 Edition images as well.

Toyota i-Road is no less strange in the flesh

We've seen plenty of three-wheeled creations in our day, but none quite like the Toyota i-Road Concept. The "personal mobility vehicle" offers seating for two with driver and passenger positioned in a tandem position. While that may sound more like a motorcycle than a car, the closed cockpit means riders don't need a helmet. The design also takes a page from the 2008 Peugeot HyMotion3 Concept with an articulating front suspension that allows the driver to lean through corners thanks to "Active Lean" self-balancing technology. Unlike the funky Pug, however, the i-Road is a fully electric plug-in vehicle.
While there are just five-horsepower on hand from an electric motor, the i-Road should serve up a range of around 30 miles thanks to its lithium-ion battery, and Toyota claims the cells can be topped off in three hours with a "conventional domestic power supply." Sounds majestic. Take in the full press release below.