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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.

Yes, the Mazda BT-50 pickup is real. No, you can't get one.

Mazda exited America's pickup segment when it deep-sixed the Ford Ranger-based B-Series after the 2009 model year, but it remains committed to the body style overseas. The third-generation BT-50 introduced online wears an unusually stylish design for a global truck, while its interior looks and feels more car-like than before. The BT-50 is based on the Isuzu D-Max, but the familiar shield-shaped grille hides the common DNA well. Horizontal slats and a thick chrome frame create a visual link between the pickup and members of Mazda's line of sedans and crossovers, while stylists gave the rear end more utilitarian-looking lines characterized by vertical lights. The variant depicted in Mazda's images is an upmarket trim built for users who need a rugged daily driver, and more basic versions that feel at home on a construction site will ship will inevitably look a lot cheaper. It measures 208 inches long, 74 inches wide, and 70 inches tall when buyers select the double-cab model and order four-wheel drive. These figures give it a footprint almost identical to the four-door Ranger's. Inside, the BT-50 shares some parts with the D-Max, including its 9.0-inch touchscreen and its HVAC controls. Motorists in global markets are increasingly using pickups as daily drivers, so Mazda chased this trend by adding more technology and safety features to the BT-50. Those willing to climb the trim hierarchy are rewarded with conveniences like an eight-speaker stereo, digital gauges, automatic headlights, parking sensors on both ends, and dual-zone climate control, among other features. Mazda wants to peg its truck a little bit higher than Isuzu's. The only engine detailed by the firm is a 3.0-liter four-cylinder turbodiesel built by Isuzu and tuned to deliver 190 horsepower at 3,600 rpm and 332 pound-feet of torque from 1,600 to 2,600 rpm. Rear-wheel drive and a six-speed manual transmission come standard, and motorists can pay extra for four-wheel drive, a six-speed automatic, or both. It's reasonable to assume a smaller, entry-level turbodiesel will join the range later on. With the 3.0-liter, the BT-50 can haul 2,347 pounds, and its towing capacity checks in at 7,716 pounds. That's more than enough to tow an enclosed trailer, your stripped-out Miata, an extra set of slicks, and a boxful of tools. Making your dreams of Mazda-Mazda towing come true will require moving far overseas, because the Japanese company isn't planning on returning to America's pickup segment.

Mazda3 Skyactiv-Hybrid and CNG Concept shown in Japan

Mazda has received a tremendous amount of public and industry praise in the last few years, following up the successful introduction of its Skyactiv technology (powertrain and otherwise), with strong products like CX-5, Mazda6 and most recently, the Mazda3. At the Tokyo Motor Show, Mazda has taken yet another step forward with Skyactiv and the 3, showing the compact (called "Axela" in Japan) with an all-new compressed natural gas engine in the Skyactiv-CNG Concept.
The end result of the Skyactiv-Hybrid is fuel consumption estimated at something like 74 miles per gallon.
Mazda thinks that CNG-powered vehicles are due for an uptick in demand, and the company believes this new powertrain will add valuable breadth to the Mazda3 range. The CNG Concept is actually a duel-fuel vehicle, capable of running on either natural gas or gasoline. In fact, we're told that the high compression ratio (14:1) inherent in Skyactiv-technology gasoline engines makes conversion to CNG particularly simple.