After a bad experience when I was first behind the wheel as a teenager, I’m only just now learning to drive, more than a decade later. My partner and I are going through the school together, and when asked about our dream vehicles in class, she replied that she’d love a self-driving RV. Her wish eventually might turn true with a device that grants vehicles more autonomy. It isn’t a device that will give a car full self-driving powers — you’d need to add sensors everywhere, for starters — nor does it work with every model.