Rx7, Ls1, Tr6060, Mazda, Samberg, Jtr, Turn One, Silver, Touring, Coupe, Sunroof on 2040-cars

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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.

Mazda RX-3 restomod makes Leno scream, us cheer

The Mazda RX-3 Savanna was the rotary-engined version of the Mazda 808 Grand Familia. Sold in the US from 1971 to 1978, the little Japanese fastback earned a reputation as an excellent racecar, winning events all over the world. A racing connection is how a fantastic 1973 restomod example owned by Savant Young made its way to Jay Leno's Garage. Young said that when he was a boy his uncle used to street race an RX-3, and Young liked how the RX-3 sounded and the fact that a tiny import could go up against and beat big V8s of the time. Leno admitted that he has no connection to the RX-3, saying it's not the kind of car he typically likes. But he liked Young's custom update so much that when he saw the coupe sitting outside the Petersen Museum in Los Angeles, he waited for the owner to show up. Young's changes over the 15 years he's owned the car include dropping in the rotary engine and running gear from the second-generation Mazda RX-7, bridge-ported and methane injected. At 15 pounds of boost he says it's putting out about 400 horsepower. The rear end comes from a Toyota Hilux half-ton pickup, to help put all that power down in a car that weighs maybe 2,100 pounds. The color is taken from the Lamborghini palette. Disc brakes all around, 14-inchers up front, control the velocity. Nothing controls the gas mileage, said to be "maybe 12 mpg." And nothing could stop Leno from whooping it up during the driver. Check out the fun in the video above.

2017 Mazda CX-9 packs turbo power, fresh style

After nearly a decade of sales, Mazda finally introduces the second-generation CX-9 crossover. It delivers a comprehensive interior and exterior overhaul, blessing the CX-9 with a powerful, efficient Skyactiv powertrain, and instilling even more of the sporting character that makes Mazdas so darn charming. Like every other vehicle in Mazda's catalog, the CX-9 now wears the handsome, suave stylings of the company's Kodo design language. We think it looks great, but feel free to disagree in Comments. The second-generation CX-9 is the perfect example of Mazda's growing interior design prowess. As is so often the case, it's not so much the style but the choice of materials that stands out. Nappa leather can be paired with real Japanese rosewood and aluminum accents to craft a cabin that feels far more expensive than what you might expect from Mazda. The quality is impressive, even on the pre-pre-production prototypes we tested (drive impressions coming soon). The other headline, aside from the gorgeous interior, is the powertrain. The heart and soul of the operation is a new 2.5-liter, turbocharged Skyactiv engine. Although it only produces a modest 250 horsepower, that figure is complemented by a whopping 310 pound-feet of torque. Importantly, torque is easy to access in the lower part of the rev range, with peak twist coming in at just 2,000 rpm. It drops off rather suddenly north of 4,000 rpm, but as Mazda tells it, most consumers rarely venture above that figure. Mazda expects the CX-9's core market to be perfectly happy with the robust low-end output. A six-speed automatic is responsible for doling out that grunt, and is meant to play nicely with the same i-Activ predictive all-wheel-drive system found in the CX-5 (although the two cars don't share any AWD components). Using 22 different sensors, the system measures road conditions 200 times every second and will even send up to half the engine's power to the rear axle. The entire car, meanwhile, rides on the same Skyactiv architecture as the CX-5 and Mazda6, meaning a multi-link rear suspension has been paired with MacPherson struts up front. Eighteen-inch wheels will be standard, although 20s will also be on offer. You can expect to hear much more on just what the new CX-9 is like to drive next week. Until then, enjoy the official images from Mazda, and keep an eye open for live shots from the LA debut, headed your way soon.