Does anyone have solid figures regarding automobile lifespan and what variables affect it. I&#x27;ve always been told that mileage--not time--is the main variable.<p>I wonder if driver-less automobiles will really reduce the need for cars. Sure, you can have a car run 3 different commutes a day instead of 1 typically done now. But that will produce 3X the wear and tear on the car.<p>In New York, taxis are used for 3-5 years.<p>Plus, with driveless cars we may end up driving much more and further. Instead of a bus, I may just have a car drive me to work. In fact, Uber already lets me commute by car instead of public transit 4&#x2F;5 days a week.<p>Uber has already caused me to drive more, not less. I wonder what the end result is.<p>But they are right to be worried. Any major change in technology brings in winners and losers.