[master-lincoln]

That was a law in France from 2012 to 2020 too (breathalyzer needs to be on board). It was not on European level and it has been removed.

[mdp2021]

That offensive law (every car owner must keep a breathalizer item in the vehicle ready for use) was famous in the "issued but not enforced" category.

But the mandate to keep "equipment" in the car is very different from kill-switches depending on sensors and embedded in electronics - the poster seems to have meant this.