I discovered a pretty neat little thing that our Model 3s do with the wipers. They actually retract down below the windshield line when not in use or when a bit of time has passed between intermittent wipes while on auto. I tested it while on the highway and the only reason I can find for this even being a feature is noise reduction. It's not noticeable at low speed, but on the highway, there is a very distinct reduction in wind noise when they retract down. Check it out in a video I made:
T. Antony
T. Antony