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Investigators Find No Defect Trend With Tesla Motors' Model S

Federal safety investigators said Friday they have found no apparent defect trends in the Tesla Model S, an electric luxury car that has its share of fans and critics. The National Highway Traffic Safety Administration closed a four-month investigation into whether the car's batteries were at heightened risk for underbody strikes and subsequent fires. Even though no defect trend was found, Tesla Motors said in a written statement it would further protect the bottom of its cars with a reinforced underbody shield. The California-based automaker started adding the shields on March 6 and will retrofit older models free of charge. It will also increase the ground clearance of new cars. "This fix should eliminate the potential of a battery-pack fire under all but the most extreme circumstances," said Karl Brauer, a senior analyst at Kelley Blue Book. Although there are more than 194,000 car fires in the United States every year, NHTSA investigators began a preliminary investigation into potential trouble on Nov. 15, 2013 following two Model S fires, one in Tennessee and one in Washington. No one was injured or killed in either fire. Roadway debris punctured the battery pack near the front of the compartments in both cases, damaging the batteries' lithium ion cells that then began "thermal runaway" events. The opposite ends of the debris had dug into the pavement and jutted upward. Tesla called this a "piking effect." The company said it has conducted 152 vehicle level tests, and that the new shields prevented any damage or penetration of the new shields. The first is a rounded, hollow aluminum bar that's followed by a titanium plate. The third layer of protection is made of solid aluminum. (There's video of the new plates in action on the Tesla Motors website). "We have tried every worst-case debris impact we can think of, including hardened steel structures set in the ideal position for a piking event," Tesla Motors founder Elon Musk wrote on the company's blog," essentially equivalent to driving a car at highway speed, into a steel spear braced on the tarmac." Approximately 15,805 vehicles are eligible for the upgrades, which NHTSA says should reduce the frequency of underbody strikes and subsequent fire risks. But the agency did note that the closing of the investigation did not necessarily constitute a finding that a defect does not exist. "The agency reserves the right to take further action if warranted by new circumstances," it said.

Recharge Wrap-up: Nissan "religious" about zero-emissions, Tesla crashes at dealership, Formula E on-board video

Nissan is pretty darn serious about being king of the EV industry. Just see what Chief Planning Officer Andy Palmer has to say at the launch of the e-NV200: "When it comes to zero emissions, we're absolutely religious. We'll be the absolute, No. 1 leader in zero emissions. No doubt. That's our positioning." Bold words, to be sure. Toyota, on the other hand, ended its collaboration with Tesla (whom Nissan mustn't forget about in its quest to reign supreme in the EV world) to build the RAV4 EV, and will focus instead on hybrids and testing the waters with hydrogen cars. Says Jim Lentz, CEO of Toyota North America, "I would rather invest my dollars in fuel cell development than in another 2,500 EVs." Read more at Automotive News or Autoweek. To celebrate 25 years of TDI technology, Audi is releasing the A7 Sportback 3.0 TDI Competition special edition in Europe. The Competition uses Audi's biturbocharged, 3.0-liter diesel engine boosted to 326 horsepower, giving the car a 0-62 time of 5.1 seconds. It comes with the S line sport package and is offered in four exterior colors: Daytona Gray, Misano Red, Nardo Gray and Sepang Blue. The interior is black leather, with the option of Misano Red or Agate Gray contrast stitching. The Competition edition will go on sale in August starting at ˆ72,000 (about $97,700). Audi's first Turbocharged Direct Injection engine debuted at the 1989 Frankfurt Motor Show in the Audi 100 2.5 TDI. See the press release down below for more details. There was another Tesla Model S crash recently, this one at the Tesla Store. The driver apparently crashed the freshly purchased car into the Tesla sign before even making it off the lot. According to Reddit user s1lentway, who was at the Tesla Store in Fremont, California when it happened, "We believe this is someone who just got their car. They must have been driving it for less than a minute and lost control, crashing right into the sign missing the showroom glass windows only by a few inches." Wrecked Exotics suggests the driver hit the accelerator instead of the brake pedal. Probably the best comment in the Reddit post: "Edison strikes again." See the original post at Reddit for more corny jokes, speculation and similar stories from other users. Take a lap in a Formula E racecar. The video below offers up the sights and sounds of a hot, wet lap in the open-cockpit, all-electric Spark-Renault SRT_01E.

Recharge Wrap-up: Video shows Tesla robots at work, Ghosn disappointed by China's EV market

A video from The Wall Street Journal shows Tesla's new assembly robots at work. The hulking bots are each named after X-Men superhero characters to give them a sense of familiarity and make them less intimidating to the humans working alongside them. Their monikers also reflect their superhuman levels of strength. The naming of the robots appears to have had the intended effect, as human employees refer to the automated machines as colleagues, and are happy to have the help moving the heavy cars around the factory floor. The robots were added as part of an upgrade and expansion to Tesla's factory in Fremont, CA last year. See the video above, and read more at Teslarati. Nissan CEO Carlos Ghosn says that China should offer more incentives to improve disappointing EV sales. Nissan sells its Leaf EV in China as the e30 under its Venucia brand. The company didn't disclose sales figures, but Ghosn is disappointed that EVs aren't "taking off" in China like they are in other markets. Until the market improves for the e30, Ghosn says Nissan probably won't introduce other EVs to China. "The main challenge today is really to encourage, put more incentives, in order for the consumer to buy in," says Ghosn. "Before adding more cars and bringing more technology, we just need to make sure we can sell the technology we already put into the ground." Read more at Automotive News. Total in France will convert its La Mede petroleum refinery to produce biodiesel. Total will stop producing petroleum at the refinery by the end of 2016, then spend $216 million to convert it into the country's first biorefinery. Improved fuel economy and energy efficiency have helped reduce demand for petroleum products in Europe by 15 percent since 2008. Total's response to "the crisis in the European refining industry" is "to innovate and adapt to meet shifting demand trends," according to Total CEO Patrick Pouyanne. "The central focus of Total's plan for our French refining business is to realign our operations and products to changing markets." Read more at Domestic Fuel, or in the press release below. Total's French Refining Roadmap: Upgrade Donges and Transform La Mede April 16, 2015 Paris – Total today presented its French refining roadmap to employee representatives. The plan is designed to give each Total's refining site in France the means to resist in a volatile environment and perform profitably.