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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.

2015 Russian Grand Prix was full of crashes and DNFs

Mercedes-AMG Petronas non-executive chairman Niki Lauda said of Lewis Hamilton's race-day domination this year, "The guy is driving like a god." Qualifying is another story, though – teammate Nico Rosberg taking pole proved that sometimes deities have to settle for second on the grid. Williams driver Valtteri Bottas surprised himself and his team with third place, half a second behind Hamilton but 0.05 sec ahead of the first Ferrari driven by Sebastian Vettel, while a mistake on Kimi Raikkonen's final flying lap left him in fifth, 0.4 sec behind Vettel. The Sahara Force India team had a good showing, with Nico Hulkenberg qualifying sixth just ahead of teammate Sergio Perez in seventh. It's the first time they've had both drivers in the top ten on the grid since the 2014 British Grand Prix. Romain Grosjean is leaving the stormy waters of Lotus at the end of the year for the unknown waters of Haas F1, but he made the shoestring operation look really good before Renault takes over by taking eighth place on the grid. Max Verstappen qualified well again with ninth in the Toro Rosso, ahead of the first Infiniti Red Bull Racing of Daniel Ricciardo in tenth. Red Bull driver Daniil Kvyat lined up eleventh for his home grand prix, certainly a disappointment after locking up fifth place on the grid last year in a Toro Rosso. When Pirelli brought soft and supersoft compounds to Sochi, the company said it hoped this year's race would be better than last year's. We're sure this first-lap mishap isn't what they meant. Rosberg and Hamilton dragged it down to Turn 1, with Rosberg getting the inside line. Hamilton had to go wide at Turn 2 as Rosberg fought to hold position, but they left a mess in their wake: Hulkenberg spun going into Turn 2 and stopped in the middle of the track, and Marcus Ericsson in the Sauber – who'd started 16th – collided with him. Both cars were out of the race immediately, and the Safety Car came in. The Safety Car returned to the pits on Lap 3 Rosberg led the field, but just two laps later the German complained of a sticking throttle pedal. Two laps later he had to retire, unable to drive the car properly. That put Hamilton at the front, and we've seen that race a bunch of times before. He built a double-digit lead and never lost it.

Daimler: 2017 the right time to launch our hydrogen fuel-cell vehicle

Zero-emissions vehicle development has never focused purely on off-the-line acceleration. So when a research executive with Mercedes-Benz parent Daimler says it's Okay that companies like Toyota and Hyundai will have a head start selling hydrogen fuel-cell vehicle, it's somewhat believable. But is Daimler really fine with being two years behind? It appears so. Daimler plans on debuting its first fuel-cell vehicle in 2017, Automotive News says, citing an interview Automobilwoche had with Daimler's corporate research chief Herbert Kohler. The German automaker estimated about a decade ago that it would be able to get fuel-cell production costs down to an "acceptable" level in 2012, but it turns out that estimate was about five years too aggressive. Daimler originally started leasing out a limited number of its F-Cell hydrogen vehicles in the US for $849 a month, though later brought that down to $599 a month. Daimler says it received a boost in its effort to accelerate fuel-cell powertrain development when it reached an agreement early last year with Nissan and Ford to work together on speeding up relevant powertrain technology. While Toyota's first fuel-cell vehicle in Japan is priced at almost $70,000 (before big government incentives kick in), Kohler says Daimler's first fuel-cell vehicle will be priced similar to a hybrid vehicle. Of course, that's a Mercedes-Benz hybrid we're talking about here, but still. Related Gallery Mercedes-Benz F-Cell View 9 Photos News Source: Automotive News - sub. req. Green Mercedes-Benz Hydrogen Cars h2