How big is a rack in VW beetles though?

It's a terrible measurement because it's an irrelevant detail about how their data is stored that no one actually knows if your data is being stored in a proprietary cloud except for people that work there on that team.

So while someone could say they used a 10 TiB data set, or 10T parameters, how many "racks" of AWS S3 that is, is not known outside of Amazon.