"Rear privacy" refers to a level of seclusion or protection from being seen or observed by others in the back area or space of something, like a car or a house. Full definition
When outfitted with the automatic transmission the car also comes with rear privacy glass, keyless entry and cruise control. (truecar.com)
Per another review, I assume the tech package comes with rear privacy curtain. (carsdesk.com)
Remote operation of the front passenger seat and side and rear privacy blinds are «add - ons» and you'll even have to pay extra for a hard luggage area cover. (motoring.com.au)