Everything about Tesla has been around helping/saving the environment by accelerating the adoption of battery driven cars vs ICE. Nothing about self driving cars says they have to be electric. In fact, if the first fully self driving car was gasoline that would probably impede Tesla's growth. So it impacts where your limited R&D, manufacturing and sales and marketing $$"s go. I don't think a company as small as Tesla can be both - at least not effectively. One will have to give to the other.