Earlier quoted context omitted.
[flagged]
Can you link to this regulation or coverage of it? I can find a proposed requirement for data portability when cars are connected (the European Data Act; https://ec.europa.eu/commission/presscorner/detail/en/ip_22_... ) but nothing of the nature you're describing.
-- from source --
Compulsory for new car models
If you buy a new model of car, approved for manufacture after 31 March 2018, it must have the 112-based eCall system installed. This rule applies both to cars with no more than 8 seats and light commercial vehicles. If you have a car which is already registered, you are not obliged to retrofit an eCall device but you can have it installed if your car meets the technical requirements.