The Tech in my world is pretty advanced even though our tribes around the area don't really like machines that much. I find them interesting.
(Aloy speaks low) I have a Focus that can show me details about machines and much more, attacks, details and all that. My world is run by a advanced AI named GAIA, however I haven't heard of any warp drive, for that I apologize.
But between the two, I'm sure we can try to figure things out about the bus.