Future of Cars?

The question I see that keeps coming up is the future of cars, and what there uses will be in the future.  The technological revolution for cars is coming, and you would have to be ignorant to see otherwise.  Many leading experts in the field of self driving cars say that the process in making a completely automated car system is under way and expected to appear in the next 20 years.  The other question that is being asked is the future fuel source for these automobiles.  Since the green revolution is starting to appear I believe that the main fuel source for these vehicles will be electricity.  Electricity is a clean and cheap fuel source that is becoming more readily available everyday.  These two innovations will change the human perception of the car as we know it.  These changes will be met with great challenges, but as most great innovations, will progress over time and eventually be at a completed state.  Self-Driving cars have the biggest obstacle to face as the technology is still being fleshed out and developed even as we speak.  Although technology is exponential, so a few more leaps and bounds later, this idea of a completely computerized car becomes much more feasible.   

Regardless of what happens, these opinions are my own, and my opinions are made from what I see happening in science, technology and speculation of the path of the car industry.