Depends a bit on where you are. In France it's definitely a thing if you live outside of the major cities. In the Netherlands, active government intervention stopped these car-only hypermarkets ("weidemarkten").
Gotta say though, Poland has both, but indeed has a full range from small Zabkas to Auchans at the edge of town (probably not a coincidence it's French brands operating the hypermarkets).
Polish hypermarkets, at least in my experience, were never car-only. They were always within the city enough that one could easily use public transportation to shop there. What is car-only in Poland are wholesaler shops like Makro, which are often located well outside cities, but those are not meant for ordinary consumers.
Gotta say though, Poland has both, but indeed has a full range from small Zabkas to Auchans at the edge of town (probably not a coincidence it's French brands operating the hypermarkets).