We don’t necessarily know when fully autonomous cars are going to hit the market, but at this point, it isn’t so much a possibility as it is an inevitability. Automated driver aids and safety features that are already available on a lot of vehicles can already do most of the driving on the highway, and a number of luxury cars will soon offer autopilot modes that work like an extremely capable cruise control.
With companies like Google successfully testing fully autonomous vehicles on public roads, it’s entirely plausible that in 25 years self-driving cars will be more the rule than the exception. The advent of autonomous technology will obviously change their experience behind the wheel; drivers will eventually become passengers themselves, allowing them the freedom to do whatever they want while en route to each destination.
It’s easy to see how not needing a driver behind the wheel will change the driving experience. Taxi rides would become significantly cheaper, and people would be less likely to need a personal car unless they lived far outside a city. Car sharing will probably become more common, distracted driving should become much