FILE - In this April 22, 2014 file photo, a worker cleans a Tesla Model S sedan before a event to deliver the first set of cars to customers in Beijing. Tesla Motors on Thursday, March 19, 2015 said it is updating its Model S electric car to help ease drivers' worries about running out of battery charge. (AP Photo/Ng Han Guan, File)

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Tesla updating Model S to ease range anxiety, improve safety

• By ncs-import
• March 20, 2015