2005 Nissan 350z Grand Touring Convertible 2-door 3.5l on 2040-cars

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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.

Nissan edges out Tesla for most ZEV credits sold in California

When it comes to California zero-emissions vehicle (ZEV) credits last year, Nissan was selling and Mercedes-Benz was buying. The California Air Resources Board (CARB) put out its ZEV-credits numbers for the year that ended September 30, which is why we now know that Nissan, maker of the battery-electric Leaf, transferred 663.6 ZEV credits out of its account last year. That just edged out the 650.195 credits that Tesla sold. Chrysler's Fiat affiliate was a distant third, but its limited-production Fiat 500E was still able to generate some ZEV credits and then transfer out 235.2 of them. We don't know how much the buyers paid for these credits, since those details are kept private. It's an ever-changing rulebook over at CARB, anyway. On the flip side, Mercedes-Benz had to buy 663.6 ZEV credits in order to comply with clean vehicle-sales mandates in the most populous US state, indicative of the German automaker's gas-guzzling tendencies. Honda has cars that get better fuel economy than your average Benz, but its plug-in vehicles represent just a fraction of total sales and so it had to shell out for 542.5 ZEV credits. Chrysler-Fiat basically tread water, since the 237.8 ZEV credits it required for compliance canceled out gains on the other side of the ledger. Those Dodge Ram pickup trucks don't exactly help matters. Last year, Tesla sold the most ZEV credits while GM purchased the most. Overall, Californians bought about 3.5 million vehicles for the year that ended September 30, including 38,000 battery-electric vehicles, 30,000 plug-in hybrids and 570,000 conventional hybrids. The longstanding ZEV program means that California now has more than 100,000 ZEVs on its roads. Read this for more details on ZEV credit transfers in California. Featured Gallery 2013 Nissan Leaf View 55 Photos News Source: California Air Resources Board via Green Car Congress Government/Legal Green Mercedes-Benz Nissan Tesla Electric California zev credits

Nissan, Mitsubishi team up for $14,000 electric car

Last November, the Renault-Nissan Alliance and Mitsubishi announced a partnership to build some tiny electric vehicles for the Japanese market. Well, the partnership is going to build more than that (like the Nissan Dayz, pictured above in Roox form, and the Mitsubishi eK wagon), but we're most interested in the upcoming plug-in results. Those results are not here yet, but we now know that the 50-50 joint venture is moving forward and that the first "kei car" EV from the project is now due in fiscal 2016, according to the Nikkei Asia Review. The makers of the popular Leaf and i-MiEV electric vehicles say that the new small EV will be the cheapest EV on the market when its released, potentially priced at 1.5 million yen (around $14,700 US). Currently, the i-MiEV is the cheapest EV option in Japan, with a 2.5-million yen starting price (just under $24,500 US) before incentives. Taking a good $10,000 of the purchase price is likely more than enough to counter the smaller size and, perhaps, more limited amenities. Featured Gallery 2014 Nissan Dayz Roox: Tokyo 2013 View 15 Photos News Source: Nikkei Asia Review Green Mitsubishi Nissan Renault Electric kei car