1990 Nissan 300zx Base Coupe 2-door 3.0l 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.

Nissan IDx future in a coma, prospects dim

The answer, at least for the public, was always a huge "Yes!" when it came to the Nissan IDx Nismo and IDx Freeflow concepts shown off at the Tokyo Motor Show 2013. We were told they were "in the plan" for production if fans got behind them, but that sunk to "increasingly cloudy" plans for production. Two months later we were being told the production version would get less retro styling. But the damning swerve came in January this year, when Nissan said it was shifting priorities to focus on volume offerings. When The Truth About Cars spoke to the VP of product planning for Nissan North America, Pierre Loing, the smothering blanket of reality was thrown over the IDx duo: Nissan has no small, rear-wheel platform to build them on. At least, not one that it could make any money with. The 370Z is built on an architecture too big for the IDx, and sister company Renault only has small front-wheel-drive platforms. The idea of developing a chassis just for the IDx doesn't make any sense, as sales trends for the Scion FR-S and Subaru BRZ should show. Will we see anything of the concepts in production guise, then? Loing said Nissan "may have some room" for a product with retro design cues and said to check back "in a few years" to get a final answer. But really, the answer appears to be, "No."

Nissan GT Academy: Living the dream

When I first met Nicolas Hammann, he was beaming, as though he still could hardly believe this was his life now. He's a young guy, almost 22 years old. He grew up in Elkhart Lake, WI, doing some karting and road racing when he could. Just last year, he was at UNC Charlotte working toward a degree in mechanical engineering as a way to stay around cars in the future. Then he qualified for GT Academy. Jump ahead to January 2015, and Nic is in his first pro race, the 24 Hours of Dubai, representing Nissan behind the wheel of a GT-R GT3. And now he's here at the 2015 GT Academy Finals in Nashville, TN, acting as a sort of ambassador from the other side of the challenge – an example of what each of these guys hopes to achieve. After this, he's off to race at Lime Rock in the Continental Tire Sports Car Challenge. After that, back to his home turf at Road America. Nicolas Hammann's dream of becoming a pro racer has come true. The GT Academy National Finals are made up of four parts, equally weighted. Within each program, though, there is room for interpretation - a gray area where those in charge can make judgment calls about character and whatnot. On the first day, the competitors take part in a Gran Turismo 6 tournament, as well as a PR test. Day two is made up of a grueling physical challenge and a driving test behind the wheel of an actual car. The virtual racing takes place in a single room with multiple "sleds" — console setups with a built-in screen, Thrustmaster T500 force feedback steering wheel, and a pedal set. It is particularly balmy in Nashville during the first day of Finals, and all of the equipment — including a setup to livestream the competition on Twitch TV — makes the room uncomfortably hot. In this first part of the competition, drivers score points based on their finishing positions over a series of four rounds per group. Scrutineers look on to make sure everyone is playing above board. Between rounds, the individual competitors go before a panel of Nissan reps for the PR test, and they are asked a series of predetermined questions (with room for improvisation, of course). While the answers themselves provide some useful information about the competitor, it's the way they compose themselves that's really under inspection during this segment. After all, whoever goes on to race will be representing Nissan, Sony, and the country on a global stage. The longer a competitor is in the room the better, I'm told by the Nissan folks.