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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.

Renault names new leaders as jailed Carlos Ghosn bows out

PARIS — Renault appointed Michelin boss Jean-Dominique Senard as its new chairman on Thursday, after Carlos Ghosn was forced to resign in the wake of a financial scandal that has rocked the French carmaker and its alliance with Japan's Nissan. Senard will become chairman immediately, the company said, with deputy chief executive Thierry Bollore taking over Ghosn's other Renault role as full CEO. The appointments may begin to ease a Renault-Nissan leadership crisis that erupted after Ghosn's Nov. 19 arrest in Japan and swift dismissal as Nissan chairman. Senard, 65, now faces the task of soothing relations with Renault's Japanese partner and resuming talks on a new alliance structure to cement the 20-year-old partnership. "It's important that this alliance remain extremely strong," Senard told reporters after a board meeting - citing the mounting investment demands of new vehicle technologies. "It is our compulsory duty to go forward together." Ghosn's exit also marks a clear end to one of the auto industry's most feted careers, two decades after he was despatched by former Renault boss Louis Schweitzer to rescue newly acquired Nissan from near-bankruptcy — a feat he pulled off in two years. After 14 years as Renault CEO and a decade as chairman, Ghosn formally resigned from both roles on the eve of the board meeting. Ghosn's arrest and indictment for financial misconduct has strained the Renault-Nissan relationship, threatening the future of the industrial partnership he transformed into a global carmaking giant over two decades. For two months, the tensions deepened as Renault and the French government stuck by Ghosn despite the revelation he had arranged to be paid tens of millions of dollars in additional income, unbeknownst to shareholders. Ghosn has been charged with failing to disclose more than $80 million in additional compensation for 2010-18 that he had agreed to be paid later. Nissan director Greg Kelly and the Japanese company itself have also been indicted. Both men deny the deferred pay was illegal or required disclosure, while not contesting the agreements' existence. Ghosn has denied a separate breach of trust charge over personal investment losses he temporarily transferred to Nissan in 2008. Ghosn had agreed in recent days to step down from Renault, Reuters reported on Tuesday — but only after the French government, Renault's biggest shareholder, called for leadership change and his bail requests were rejected.

Jay Leno checks out Nissan IDx Nismo, spiritual successor to classic Datsun 510

Jay Leno may not be spending his night behind the Tonight Show desk anymore, but he's clearly not done rolling precious metal into his garage, intent on putting it through its paces after a thorough investigation. The latest machine to meet Jay on his home turf is the Nissan IDx Nismo Concept that we first saw at the Tokyo Motor Show late last year.
Leno already has love for the classic Datsun 510, which plays a cameo in the video that you'll see below, and he refers to the IDx as the spiritual successor to that car's ethos - driving fun in an affordable package. Fortunately for us, while the IDx is a showcar first and foremost, it is indeed driveable, and Leno, naturally, takes his turn behind the wheel.
Scroll down to watch the complete video below.