That sounds more like "legal asked for list of everything we collect, and anything we could collect by accident or inference" - and it leading to hilarious results - which I have seen firsthand before.
We own a Kia. I'd offer to do a GDPR data request, but my data would not give us any useful signal here lol.
As has been noted on HN several times, there are cars that monitor when you have sex in them. You might be surprised what is known and by whom.