I see what you mean
Having this kind of behavior would require additional and external server handling (odometer history is neither stored on the car neither given in a charge. An external server would be required to listen for charge launch, and store the current odometer). I don't think it would be a nice idea regarding personal data and so..
Thanks for the update. Makes perfect sense from a design perspective if it’s unsupported by the API. Renault would have to add it to their API for you to consume it.