Elon Musk, billionaire, co-founder and chief executive officer of Tesla Motors Inc., checks a mobile device as a Tesla Model S automobile sits on display in the Tesla store at Westfield Stratford City retail complex in London, U.K., on Thursday, Oct. 24, 2013. Tesla, the electric-car maker led by Musk, had its first quarterly profits this year with a boost from selling California pollution credits. Photographer: Simon Dawson/Bloomberg via Getty Images
