It's the general data privacy regulation, it applies generally, to everything. It treats planes, cars and phones in exactly the same way (in that it never specifically mentions any of them).

The GDPR even covers you just writing notes into your diary about what your neighbours have been up to.

Is there a precedent for this or are you just interpreting it as what you think makes sense?

What exactly do you mean by precedent?

Yes, there are a plenty of precedents in the usual sense of the word. Such as this case, https://www.enforcementtracker.com/ETid-851

If you're going to argue (like _djo_) that this is not a precedent because it concerns a different type of a vehicle, you're entering into some rather absurd territory.