“By 2032 you will be able to purchase a mass produced car that can drive itself to a designated destination.”

DARPA challange winners have seeded the technology. A couple of states are in the process or have passed (Nevada) laws allowing self driving cars. There is a greater and greater need as demographics increases the age of the population. The chief impediment will be legal issues but as this is starting to be considered now, twenty years should be sufficient to overcome the legal issues enough to start selling the cars.