2005 Mazda Rx-8 Base Coupe 4-door 1.3l 6 Speed Manual 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.

Mazda Miata RF gets price bump for 2019

Over the past couple of months, Mazda has been releasing information about updates for the 2019 model year of the MX-5 Miata. We got details about the car's 2.0-liter I4 making 181 horsepower and 151 pound-feet of torque. The car also gets a telescoping steering wheel, new door stops, updated cupholders and seat levers, standard rear-view camera and 17-inch wheels. Later, we learned the new Miata would also be a smidge more efficient. Now, Mazda has announced pricing for the 2019 Miata RF. Going on sale in August, the 2019 Miata MX-5 RF starts at $33,240 (including $895 in destination fees) for the Club trim level with a six-speed manual transmission. That's a price increase of $435. That doesn't seem so bad when you consider the extra 26 horsepower and higher redline. The Club 6MT can also be optioned with Brembo brakes and BBS wheels for an extra $3,770, or the Brembo/BBS/Recaro package for $4,670. The MX-5 Club with six-speed automatic comes with paddle shifters and sport mode for $33,840, but isn't available with the Brembo/BBS packages. The i-ActiveSense package, which includes features like Smart City Brake Support and lane-departure warning is a $450 option for the Club 6AT. MSRP for the Grand Touring trim starts at $34,230 with a six-speed manual transmission, which is $585 more than the outgoing model. The new GT-S package for the Grand Touring 6MT adds $750, and comes with a front shock tower brace, limited-slip rear differential, Bilstein dampers and a hand-painted black roof. The Grand Touring with six-speed automatic goes for $35,305. Auburn Nappa leather adds another $300. In terms of exterior colors, there are three premium options to choose from, each with its own added price. The gorgeous Soul Red Crystal tacks on another $595 to the price of the Miata RF. Machine Gray Metallic adds $300, while Snowflake White Pearl Mica costs $200. Pricing for the soft-top version of the 2019 Miata hasn't been announced yet. Related Video: