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Slate, a customizable EV pickup for $20k
(electrek.co)
This is a most excellent place for technology news and articles.
Possibly, technical inspections. I'm not sure whether it's a requirement for cars to be street legal or just a requirement for cars to be sold on the market. The regulation only mentions that it's about type approval but it's not like modifying a car automatically nullifies its type approval.
Certainly would be hard to argue for authorities that snipping the eCall would endanger others, similar situation as with seat belts I don't think legislation is unified there.