This is really old now (I think 2000s) but even the jacks they lift the car with doesn’t drop with gravity alone - that’s too slow. They have some mechanism that actively drops the jack, so they can pull it away faster.

At one point (oof, one article says 2010) re-fueling went out the window, that's a big time sink.

And it changes things completely for the tire changers. When there's re-fueling, there isn't really any stress on the tire changers. Without it, it's most often all on them.

Less fires too!