Tesla Motors Inc CEO Elon Musk talks about Tesla's new battery swapping program in Hawthorne, California in this June 20, 2013, file photo. Shares of Tesla Motors Inc have soared over 400 percent this... more 
Tesla Motors Inc CEO Elon Musk talks about Tesla's new battery swapping program in Hawthorne, California in this June 20, 2013, file photo. Shares of Tesla Motors Inc have soared over 400 percent this year as the electric car maker, run by billionaire Elon Musk, beat Wall Street's earnings estimates and forced hedge fund managers who had shorted the stock to buy it in order to cover their positions. REUTERS/Lucy Nicholson/Files (UNITED STATES - Tags: TRANSPORT BUSINESS) less 
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Reuters | Photo By LUCY NICHOLSON / REUTERS
Fri, Oct 25, 2013 12:15 PM EDT