@paco In relation to your experience, the salesman at Seat was VERY keen than I sign-up to their app, which made me think they had been instructed to push it hard. This made me very suspicious of their motives, so I decided that I didn't need their spyware on my phone. I didn't read the small print because I wasn't intending to install it, but your story reinforces my belief that using the app was more in their interests than mine.

@paco I bought a SEAT last year. The local dealer and VW Group UK (who 'are' SEAT) then shared my data without my permission, including with Seat in Spain.
Long story short, I asked SEAT to identify what telemetry my car collects and they are stonewalling me. I think the data is probably subject to GDPR as it is 'personal', but I cannot establish this. If anyone can help or offer insight on the data collected by the car, I would be very grateful and I can then approach the ICO.