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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.

Recharge Wrap-up: Daimler spending big for fuel cells, Ford Go!Drive experiment advances

Ford's Go!Drive experiment is entering its beta phase in London. The project, which is one of the automaker's global smart mobility experiments, uses a mobile app for on-demand carsharing of Ford Focus Electric and Ford Fiesta vehicles. The beta phase involves increasing the number of available vehicles from 20 to 50, and collecting new data from users. The program offers one-way rentals and guaranteed parking, with no membership fees and a cost of 26 cents per minute. Ford hopes to get 2,000 drivers involved in the program. Read more at Green Car Congress. Daimler will invest billions of dollars to upgrade the Mercedes-Benz Unterturkheim plant over the next few years. This year alone, it plans to spend $1.06 billion. The company expects cost savings "in the range of hundreds of millions of euros until 2020," while maintaining its workforce of 18,700 employees and adding 150 vocational training positions. The upgrades will allow the plant to become a center for building more efficient engines, hybrid powertrains and fuel cell systems. "Alternative drive systems are an important element of our future mobility," says Mercedes-Benz's Markus Schafer. "Their share of automotive production is set to steadily rise over the next few years, complementing our highly efficient engines within the portfolio. This is what we have laid the groundwork for today." Read more at Reuters, or in the press release below. The Department of Energy is providing $20 million in funding for the development of more efficient high speed industrial motors and drives. Ditching old motors and gearboxes for ones that use integrated power electronics could help decrease the energy consumption of the industrial sector, which currently uses more than 25 percent of the electricity generated in the US. The projects being funded will reduce losses and decrease the size of drive systems used in industries like petroleum refining and natural gas, which could affect the lifecycle efficiency of transportation fuels. Read more at Energy.gov.

On Location at Mercedes-Benz Van Camp in the Rocky Mountains

Camping high in the Rocky Mountains as spring gave way to summer may not seem like the obvious way to test out a work van, but that's how we sampled the 2016 Mercedes-Benz Metris. Our drive was based in Dunton Hot Springs and Cresto Ranch, CO, nestled high in the Rocky Mountains. Both were gorgeous and dripping with history. Since their rough-hewn origins they've been converted into an upscale camping experience. We spent a couple nights in Cresto Ranch, an old cattle outpost near the Dolores River. Our 'tent' was lavishly furnished, complete with a shower, desk, and comfortable bed. Glamor camping is in vogue, and this was 'glamping' at its finest. Most of the Mercedes activities started at Dunton Hot Springs, a former mining town with tents and log cabins remade into an even larger-scale glamping site than Cresto Ranch. The hot springs beckoned, but glampers could also enjoy massages or just soak in the soaring forests surrounding the site. The only downside: With an elevation around 8,700 feet above sea level, we found ourselves occasionally light-headed. It was a fun couple of days in the Rockies, on the road and at the campsite. Watch the video above for the complete experience, and read the review here.