2001 Nissan Altima Gle Sedan 4-door 2.4l 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.

Renault's new Talisman smacks of Maxima [UPDATE]

UPDATE: Well, despite taking up virtually the same amount of space on the road, Nissan spokesperson Josh Clifton confirmed to Autoblog that there's "no linkage on the two vehicles," and that "they weren't developed in tandem." The story has been edited to reflect this information. While Renault and Nissan maintain a strong alliance, the amount of sharing between the two brands is generally pretty subtle. The two automakers haven't made a habit of rebadging the other's products, although we'd surely support rebadging the Renault Clio or Megane as the new Versa or Sentra, especially if the RenaultSport versions were rebadged as Nismo models. That's not likely to change with the new Renault Talisman The big four-door sedan is the latest vehicle to ride on Renault-Nissan's Common Module Family, which also underpins the current Espace MPV. While it may wear Renault's diamond logo and ride on the Espace's platform, the new Talisman sedan takes up almost exactly the same amount of space on the road as the new Nissan Maxima. There's less than two inches separating the two sedans' overall length and wheelbase, while differences in width and height are negligible. The similarities end with the size, though. While the Maxima is only offered with a 3.5-liter V6 and continuously variable transmission, the Talisman will be available with a range of four-cylinder engines. There will be three diesels, available in 110-horsepower, 130-hp, and 160-hp varieties, along with a pair of gas engines, delivering 150 and 200 hp, respectively. The diesels can only be mated to six-speed transmissions (manuals are available for the 110 and 130-hp models), while the petrol mills are limited to seven-speed dual-clutch units. The Renault will also offer four-wheel steering, in the form of the company's 4Control system, and active dampers. While not pictured here, the Talisman will also be offered as a five-door wagon. You can expect to see both the sedan and long-roof models when Renault shows its newest entries in September, at the 2015 Frankfurt Motor Show. Related Video: THE TALISMAN Renault's new saloon packs style and real driving enjoyment Renault is proud to reveal its new executive saloon. The evocatively named TALISMAN ticks all the boxes that D-segment customers have come to appreciate, while taking wellbeing and driving enjoyment to a new level. The Renault TALISMAN features a unique combination of: • Assertive styling: sleek, elegant lines.

Nissan's Cummins tie-up bears first fruit with Frontier Diesel Runner concept

The 2014 Chicago Auto Show is proving to be a surprisingly big show for alternative fuels. The Chevrolet Silverado HD pickups are getting a compressed natural gas option and the refreshed BMW X3 is receiving a diesel engine, as is the German automaker's 7 Series. You can add one more oil burner to the mix, at least in concept form: Nissan has released its Frontier Diesel Runner Powered by Cummins with a 2.8-liter, four-cylinder turbodiesel engine and an eight-speed automatic transmission from ZF.
While Nissan calls the Cummins-powered Frontier a concept, it's really just a Frontier DesertRunner 4x2 with a diesel engine replacing the standard 4.0-liter V6, and it's meant to gauge consumer interest for a diesel option in the next-generation Frontier. Nissan has clearly noticed that Chevrolet will be offering a diesel in its new Colorado and wants to see how buyers will react to a mid-size alt-fuel pickup from a Japanese brand.
Exterior modifications to the concept are minor. To show off the engine, there is a transparent hood insert and the pickup has been painted in a two-tone finish of high-gloss red and matte silver edged in carbon fiber trim. The interior gets the same combo of red, silver and carbon fiber to match the outside.