I mean the ability to control the car remotely without line of sight or being anywhere near it, such as turning on the climate to warm up the car while still in a building so it's not freezing cold when we get back to the car with the kids, or while the car is in the garage, locking the car remotely because you're blocks away and aren't 100% sure you locked it before you left, opening the windows slightly so the car doesn't overheat in hot weather (Subaru doesn't do this unfortunately, but the Tesla does). The one thing it doesn't do which I wish it did, is roll up the windows remotely.