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Why it's difficult to accurately test the efficiency of a plug-in car

When it comes to electric vehicles and plug-ins in general, the Environmental Protection Agency-certified range is a hugely important number. While actual range anxiety is largely psychological, the magic number does provide a point of comparison of buyers considering one EV over another. The driving distance is also often touted by automakers when marketing their models. Unfortunately, as Green Car Reports finds in a recent deep dive, the way the EPA calculates the figure is a convoluted mess, and discovering the reasons why is definitely worth the read. The issue isn't about bad science but instead comes down to vague wording. The EPA's accepted range test is sourced from an evaluation called J-1634 from the Society of Automotive Engineers, and it seems to provide balanced results for vehicles that automatically reach a single state of charge when plugged in. However for models with multiple charge settings, the situation gets complicated very quickly. Of course, these modes are often created in the software, meaning that a car's certified driving distance can change with just a few taps of the keyboard without the real world results owners might experience actually changing. By showing the test's effects on the certified range for the Tesla Model S, Nissan Leaf and Mercedes-Benz B-Class Electric Drive over the last few years, Green Car Reports makes a compelling argument that it's the evaluation that needs to change. Thankfully, it appears that the solution is a very simple one. Get the details here.

Chevy Volt outsells Nissan Leaf for first time since October 2013

It's been a rough summer so far for both the Chevy Volt and the Nissan Leaf, the first two plug-in vehicles from major automakers that ushered in the modern plug-in era. In June 2015, sales were down from their 2014 levels. The Leaf was down 11.6 percent and the Volt was down 31.1 percent. For July 2015, things didn't get much better. July 2015's Volt sales of 1,313 were down 35 percent from July 2014 and are down 34.8 percent for the year-to-date. Nissan, on the other hand moved only 1,174 Leafs last month, down 61.1 percent. So far this year, Leaf sales are down 30.2 percent. What's interesting with this steep decline in Leaf sales is that allowed the Volt to outsell the Leaf for the first time since October 2013. Back then, the Volt sold 2,022 compared to the Leaf's 2,002 units. So far, Nissan has sold 83,312 Leafs in the US since the EV went on sale in late 2010. Chevy has sold 80,292 Volts. Even though Tesla doesn't release monthly sales figures, there's a good chance that the pricey Model S was once again the best-selling EV in the US in July, as it was in the first three months of 2015. At that time, Tesla delivered an average of just under 2,000 Model S EVs a month. We might get some insight into more recent numbers during the quarterly investor call on Wednesday. As we've said before, the low sales for the aging plug-ins can be explained by the fact that both the Leaf and the Volt are due for upgrades. The second-gen Volt is coming in a few months. Nissan is being cagey about when the updated Leaf will arrive, but given these latest sales figures, we wouldn't be surprised if the undisclosed timetable gets move up somehow. Related Video: The video meant to be presented here is no longer available. Sorry for the inconvenience.

Mercedes was set to sell version of Nissan Titan, now Infiniti might instead

Mercedes-Benz Titan. Mercedes-Benz Frontier. Mercedes-Benz pickup truck. None of these things roll off the tongue particularly well. We'd like to think that's the reason Daimler opted to kill the idea of rebadged Titan and Frontier pickups from corporate ally Nissan. In reality, the execution before the Frankfurt Motor Show was due to more complicated issues.
Yes, Mercedes, byword for German luxury, style and quality, would have slapped a three-pointed star on a pair of Japanese pickup trucks that have failed to resonate with consumers in the world's largest truck market. That slapping of badges isn't much of an exaggeration, at least on the outside. According to the report from Road & Track, the truck's front clip would have been tweaked, but beyond that, the sheetmetal would have been unchanged. The interior would have received a more thorough going-over by the team at Mercedes, while the suspension and noise, vibration and harshness tuning would have also received significant attention.
The trucks would have ended up being sold through the light-commercial branch of Mercedes-Benz - the same folks that will happily sell you a Sprinter van - had the deal gone through. Issues arose, though, first with the engines. Mercedes wanted a wider range of powertrains to allow it to tune models for specific markets, while Nissan said it couldn't engineer the wide variety of engines that MB wanted to drop under the hood. For the smaller truck, meanwhile, MB was interested in a hybrid or plug-in variant, according to R&T, although this was also shot down by Nissan.