But automotive sources last year told Reuters that Apple was studying a self-driving electric vehicle (EV), as the Silicon Valley icon looks for new sources of revenue amid a maturing market for its iPhone. Apple is now asking charging station companies about their underlying technology, one person with knowledge of the matter said. The talks, which have not been reported, do not concern charging for electric cars of Apple employees, a service the company already provides. They indicate that Apple is focused on a car, the person added.