(I haven't actually done that, but I abstractly like the option being available)
RIP Fiesta model. Too amazing for your own good.
Consumers tend to heavily underestimate the point in time from which cars started absolutely relying on modern electronics.
The powershift dual clutch transmissions had many shoddy model years, but the manual Fiestas were pretty reliable. I drove my 2011 model until earlier this year without any major problems.
Unless vehicle tracking is intended as something other than a safety feature?
You asked for specific legislation. For the Netherlands and our "APK" system, the relevant rule is under "Geluidssignaalinrichtingen en eCall", article 5.2.71 of the APK handboek, issued by our Rijksdienst voor het Wegverkeer.
In the EU, automatic surveillance cameras on the side of the road enforce this APK system, so if you do disable the eCall system, you will fail your APK, and you will automatically receive a fine. Even if you don't leave your driveway, the government is working hard to keep you safe; government camera surveillance cars drive around constantly, scanning your license plates, cross-referencing surveillance images with other government databases to automatically issue fines if you step out of line.
I really don't think there's anything to worry about, though; to quote another comment of mine:
>Thankfully, we're safe. Car software is notoriously high quality and rarely hacked. All governments are fully trustworthy, especially around espionage and privacy, and have a perfect track record of never lying to the public.
>Look, the European Commission stated that it cannot be hacked; "hackers cannot take control of it", from ec.europa.eu. They built an unhackable device. I am not sure what you could be worried about. If the government tells you something cannot be hacked, then it cannot be hacked. Furthermore, none of the EU member states have been found using other infrastructure to violate privacy laws.
the earlier comment I made: https://news.ycombinator.com/item?id=43958991