Today’s drivers are being sold tiny cars with no room. No room for sex/making out (Elvis said there’s no room to rhumba in a sports car) but it’s not a good spot to sit for 2+ hours anyhow anymore.
And the existing drive-ins have had to “upgrade” (buy new) equipment as the studios are all going to digital projection and distribution.
Its still a better experience at the drive in. The last couple of movies I went to in the theater, I wound up sitting near some brood sow with the endless trough of corn just corking and swilling with her mouth open like she had never eaten before. There was also the enjoyment of some moron dancing in an aisle at one show with of course a chorus of idiotic friends egging him on. When youre real lucky you get to sit by the kids who dont like the movie and play games on their phones.