Not exactly a drive-through Eucharist, but there actually used to be a drive-in Mass at my current diocese (back in the late sixties,) but people got out of their cars and went to the altar to receive the Eucharist. “Ushers” did, however, go from car to car for the collection during the Offertory. It went on for a few years, but there was a logical reason.
If memory of my relatives’ tales of it run correctly, the parish had suddenly expanded exponentially by a sudden move of a lot of city people to this particular suburb. The original church couldn’t accommodate all the parishioners, even with multiple Sunday Masses, and a decision had been made to first build the school building, move the Mass into the cafeteria there, and then construct the church. The “drive in” Mass was held for those few years between the time the original small church was razed and the school was constructed. The Mass was broadcast over a large PA system.
They still do, however, have the large concrete altar, complete with large crucifix behind it, right at the back of the parking lot! Just out of curiosity, I went and took a look at it, it really was built reverently and beautifully, and it still is in good shape. The parish uses it as a centerpiece for a meditation garden now.