Why does it take until 2022? By then we will have self-driving cars. The Chevy Volt needed a software upgrade and had to be returned to the dealership with all the associated hassles. http://money.cnn.com/2015/03/1... Tesla has been upgrading their software OTA for more than a year. You go to bed and in the morning you have a car that works better and is more capable (for example, adding autopilot). I'll take that any day of the week.