Who personally pays for windscreens? Just about every insurance policy pays for replacement on a no fault basisEveryone loves HUD until there is a chip or a crack on the windscreen and then they see the cost of replacing their uber expensive FAD.
Tesla tech is in 2 main areas, trying to autonomously drive and entertainment, there’s very little for actual drivers driving. This video rattles through loads of features which seems to highlight the point. The key phrase is “drivers driving”, that’s not to say Tesla don’t have a lot of tech elsewhere.
As for changes, MY air suspension has been mentioned, I doubt it would be battery or motor related given the changes last year.