To me this is the most exciting part of fully autonomous cars. Some of the new car designs we are going to see will drastically change automobiles forever when

To me this is the most exciting part of fully autonomous cars. Some of the new car designs we are going to see will drastically change automobiles forever when you no longer have the concept of a "driver" or steering wheel. Where should input/control surfaces go? How should the car be built? How can it be built safer?