EU directives can be relatively light on details, at times, because they are meant to be made more explicit at the national level; the ECJ will eventually rule

EU directives can be relatively light on details, at times, because they are meant to be made more explicit at the national level; the ECJ will eventually rule on the spirit of the law anyway, as soon as somebody appeals a judgement to them. Obviously a degree of common sense will be applied (i.e. peacemakers), but EV should definitely be a target - you can replace a car battery today, why should it not be possible tomorrow?