Required in the EU and will be required in the US soon. BYD’s big export market is Australia which doesn’t require them yet but they’re mandatory to get a good crash safety rating.
Renault and a lot of BYDs use Android as the software os, so probably it’s Android doing the facial recognition (and also probably the attention eye tracking) and that’s onboard.
Renault has a dashcam function that records from the built in cameras, but you have to plug in your own USB drive, so the upside of memory price-fixing is it’s probably not worth it for Renault to spend $300 to store the data now.
“Autopilot” is the category that depending on which car you bought and which DLC skins you paid for might contain “Autopilot” cruise control or “Full Self Driving” or “Autosteer” or “Cruise Control” or other shit that do different things and change names whenever the car updates.