What will the world look like when there are no petrol driven, privately owned cars?
At some point, all cars will be electric.
At some point, all cars will drive themselves
At some point, there will be a centralised control system for all cars to manage traffic, speed and capacity. People at this point may still own their own cars, or rent them, Uber-style.
What will this do for society, cities, travel, urban planning, quality of life?
And - I cannot resist asking - is there going to be a kick-ass advertising opportunity in there somewhere?