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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.

Volvo S60 Polestar concept plays in the snow with Mercedes C63 AMG

Chris Harris took to a snowy stretch of tarmac to get a fingertips-on-the-wheel feel of the Volvo S60 Polestar concept. Harris says the turbocharged sedan with 508 horsepower and 424 pound-feet of torque - and a manual transmission - is "a study to see if Volvo can get back into the fast-car market." The Polestar S60 concept, one of which was already purchased for $300,000 by a private buyer, is still making the publicity rounds because even Volvo's Chinese owners realize that, as Harris says, "Volvo sold more cars because it made fast cars" like the old 850 T5 Wagon that stormed the British Touring Car Championship in the 1990s.
For reference, Harris compares the blue wonder to the Mercedes-Benz C63 AMG and its 487 hp and 442 lb-ft. The question is, were Volvo to get the price of a production version of the S60 Polestar to climb way down from its 200,000-pound sticker, could it be worthy competition to the established giants?
You can watch Harris divine the answer via a lot of drifting through the snow and a drag race in the video below.

Mercedes 'could' do BMW i rival. But it won't

It's a safe bet that if one automaker does something, its big rival won't be far behind with a response. This is true no matter the country in question. So with BMW's i sub brand enjoying a firm, green standing, it seems like only a matter of time before Mercedes-Benz answers. Or not. Speaking to Autocar, the company's head of sales and marketing, Ola Kallenius, said Mercedes could absolutely conjure up an ultra-efficient sub-brand filled with unique, eco-friendly models to compete with the i3 and i8. Or, you know, it could just apply a fuel-sipping philosophy across the company's range and crush i with a far wider array of models and powertrains. "We could choose for the purpose-made electric vehicles to create some sort of sub-brand but, right now, Mercedes is focused on investing tremendous resources into the path towards zero emissions," Kallenius told Autocar. "It's something that will affect the whole portfolio." And that's not all. "What we're going to do in terms of the road to zero emissions is invest heavily in alternative drivelines and electrification," Kallenius said. "That's a very wide strategy, but it means that by the end of next year we will have 10 plug-in hybrid models, which, I think, is the widest portfolio of any luxury manufacturer." Zing. Kallenius went on to say that on top of the PHVs, MB will sell three all-electric models – two Smart-badged vehicles and the not-for-US B-Class – while its next fuel-cell model, a GLC-based CUV, will hit dealers at the end of 2017. Related Video: