2011 Nissan Maxima Sv Sedan 4-door 3.5l 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.

World's cheapest Nissan Leaf costs just $9,460

If you thought electric vehicles were expensive, head on over to Rotterdam in the Netherlands. There, you can buy a Nissan Leaf for the amazingly low price of just 7,450 euros ($9,460 US). Or, if a practical delivery van is more your style, check out the Nissan e-NV200 Visia Flex, which is absurdly priced at 4,950 euros ($6,400). Now, you might be thinking, those prices don't seem right, and this isn't a case of Nissan slashing the price like someone in I Know What You Did Last Summer. Instead, these deals are already and unsurprisingly being called the "world's best EV incentives." The great deals - available to businesses only – are due to generous national and local government incentives that are designed to take dirty vehicles off the road. Things like scrappage incentives (worth 2,500 euros, or $3,240) and free parking for EVs as well as home charger incentives stack up until they bring the price of a new EV down to the levels listed above. Jordi Vila, the managing director for Nissan Netherlands, told Automotive World that, "By scrapping older vehicles and incentivising buyers to replace them with zero-emission electric vehicles, Rotterdam is taking a huge step in improving air quality." As great as these deals are, it turns out that most car buyers are unaware of EV incentives. This is too bad, since there is a short but interesting history of tremendous deals on plug-in vehicles, like the $10,000 discount on the Mitsubishi i-MiEV (or the $69/month lease on that thing). For pure "dollars off" value, though, nothing beats the $30,000 in total incentives that maybe be available in some Japanese prefectures for hydrogen vehicles, which might expand all the way to free H2 cars.

Nissan shows self-cleaning car coated in nano paint

Washing the car is an activity like mowing the lawn that some people love and others find to be an absolute chore. For the latter group, Nissan may have an answer. Nissan is testing a nano-paint coating that could make the car wash a very infrequent place to visit.
Shown on a European Note hatchback, the key is a special layer of super-hydrophobic and oleophobic material called Ultra-Ever Dry that is sprayed over the paint. It creates a protective layer between the body and environment, and it means that when dirt or water come into contact with the car, the gunk just sheets away.
Nissan admits that the coating is still early in testing. The key will be if the stuff can actually last for the long term, and the company will be analyzing it over the coming months to see how it will react in different conditions. At the moment, the automaker has no plans to offer Ultra-Ever Dry as a standard feature, but it may make it available as an aftermarket addition in the future. Scroll down to watch the video of Nissan testing the stuff in some very dirty conditions.