Dogtrousers
Kilometre nibbler
I'm not an expert on GDPR but I do think that without a direct link to a person like an account number or phone number, the data on how the car was driven isn't PII by itself. Of course if you start linking datasets then you can very easily turn it into identifiable data, but I'd say it's not identifiable in and of itself.
The key phrase is whether a party can be identified "directly or indirectly". It's all a bit woolly and best left to proper lawyers to actually decide questions like that.