[will_asouka]

Surely it will only be a minority that will actually own a personal car when a self-driving taxi will be cheap and without the hassle of insurance, servicing etc.

I envisage a variable pricing system where a journey booked earlier is cheaper as it can be fitted in more efficiently, and a significant discount for a vehicle shared with other passengers with similar journeys.

I don't see cars circling with no passengers, I see cars in constant use, only stationary to pick-up/drop-off or recharge. Way more efficient than what we have currently.

[greedo]

Actually, the prices will be cheaper when booked later, as the value diminishes to zero as time runs out. As the airlines and hotels have learned, an empty seat/suite is zero revenue.