Google and Fiat Chrysler left a lot of questions unanswered when they unveiled their self-driving car partnership... and that's because they haven't answered some of those questions themselves, apparently. Fiat Chrysler chief Sergio Marchionne told guests at an event that the two companies have yet to decide who will own the data from the fleet of 100 autonomous Pacifica minivans. The vehicles need to be "viable" first, he says. He adds that the firms have yet to decide whether or not they'll offer open source code that would help others build self-driving technology.