How to Differentiate Between Driverless Cars and Autonomous Vehicles

I spent some time with a friend of mine the other day who is a real expert in the area of driverless cars. And I said, well, what do you call them in your in your discussions? You know, you talk about them every day, you must have a name for them. That's a good question. Yeah, how do you differentiate them? And he said, they do often call them driverless car. But more often, they will call them autonomous vehicles. So when they're talking amongst themselves, they usually will call them AVs. It seems obvious in retrospect, like, yeah, someone working on this stuff, they must in their lingo have a way