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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 787B and Vision Gran Turismo tower over Goodwood in 131-foot sculpture

Mazda is being honored at the 2015 Goodwood Festival of Speed by getting the space to create the event's annual sculpture outside Goodwood House. Given this year's theme of "Flat-out and fearless: racing on the edge," the Japanese automaker is showing off two of its racers at the very top of an intertwined spire that rises over 131 feet above the motoring event. The statue's design is the work of artist Gerry Judah, and it's made from over 132 tons of steel, including 418 beams, towering over the event. A Mazda 787B, the only Japanese car to ever score an overall victory at the 24 Hours of Le Mans, and the company's LM55 Vision Gran Turismo concept are featured at the very top. Spectators can certainly get a good view of the racers, too, because the sculpture twists to actually hang the cars above visitors. "Gerry has faithfully expressed our brand in a striking and beautiful structure that is clearly Kodo. There is a lightness and strength to the sculpture, yet it gives the cars movement and energy," said Ikuo Maeda, the General Manager of the Design Division at Mazda, in the announcement about the statue. Each year, Goodwood selects an automaker to create an artistic piece with the brand's vehicles outside of the estate's manor. Mazda shares some very prestigious company in being picked, too. Often rising high into the sky, in the past we've seen outstanding work from Audi, Alfa Romeo, Jaguar, and Porsche. Goodwood celebrates Mazda's motorsport heritage Mazda is the subject of the central feature at the 2015 Goodwood Festival of Speed Immense sculpture features Le Mans-winning Mazda 787B and LM55 virtual racer Goodwood / Leverkusen, 25 June 2015. Mazda's racing heritage is the centre of attention at this year's Goodwood Festival of Speed. The central feature of the annual motoring event is a spectacular 40-metre high sculpture in front of Goodwood House featuring two Mazda racers bursting into the sky on a twisting track of steel beams. Inspired by Mazda's KODO – Soul of Motion design, the creation of artist Gerry Judah conveys a grace and agility that disguises the complexity of the installation, which is made from 120 tonnes of steel. Each of the 418 steel beams is stacked at a different angle, curling the structure so that the cars at the top actually hang over the spectators below.

2016 Mazda MX-5 Miata priced from $24,915

When Ford introduced the 2015 Mustang, it gave us 300 percent more car for about 10 percent more money. Mazda has done even better with the MX-5 Miata: the current roadster starts at $23,970 in Sport trim with a five-speed manual, the smaller, lighter, sharper 2016 model is just under $1,000 more, starting at $24,915 with a six-speed manual. Destination, unchanged, adds $820 to that MSRP. It is divided into the same three tiers of Sport, Club, and Grand Touring but the standard feature set grows, with the departure of that five-speed manual for six-speeders across the board, LED headlights, and extra infotainment functionality. Mazda says it will release more pricing in the future, but so far things just keep looking up for the one of the best little roadsters out there. The press release below has more. Related Video: MAZDA ANNOUNCES STARTING PRICE FOR 2016 MX-5 Fourth-generation MX-5 stays true to affordable convertible sports car roots IRVINE, Calif. (March 30, 2015) – Mazda North American Operations (MNAO) today announced that the 2016 Mazda MX-5 Miata will start at $24,9151 in entry-level Sport trim. Mazda has instilled the latest MX-5 with the pure driving experience that has won worldwide fanfare since the arrival of the first-generation MX-5 in 1989 as a 1990 model. Yet, the fourth-generation MX-5 provides Mazda's latest safety features and technologies and maintains an inflation-adjusted price close to that of the original roadster. The 2016 MX-5 launches this summer and will be available in Sport, Club and Grand Touring trim levels. "As we get closer to the MX-5's summer on-sale date, we're seeing a surge in interest and excitement from enthusiasts and journalists," said Jim O'Sullivan, president and CEO, MNAO. "Already, early MX-5 reviews have been overwhelmingly positive, and we expect the momentum that MX-5 has garnered to continue to build as drivers get behind the wheel of our fourth-generation sports car." Infused with SKYACTIV® TECHNOLOGY and KODO-Soul of Motion design, the 2016 MX-5 is smaller, lighter and more aggressive than its predecessor, with the base MX-5 Sport expected to outperform the sportiest previous road-going variants. However, even with its focus on delivering maximum driving enjoyment, the 2016 MX-5 boasts more creature comforts and a more functional interior than the vehicle it replaces.