Family vehicule average

Hello,

i mess with a family product average

i want to compare the kms value of a specific vehicle with his family average.

i have a calculated table

Données par Famille = SUMMARIZE(
    'Paramètres Véhicules'
    ,'Paramètres Véhicules'[Famille]
    ,"Kms / jour"
    , AVERAGEX('daily_aggregate_final', 'daily_aggregate_final'[max_distance])
    ,"Kwh"
    //, AVERAGEX('daily_aggregate_final', DIVIDE(SUM('daily_aggregate_final'[kwh_consumption]),[Somme Kms Electric Final]))
    , DIVIDE(SUM('daily_aggregate_final'[kwh_consumption]),[Somme Kms Electric Final]
    ))

And a link in my model

But when i want to display the value of a specific family, in a card for example, this is the average of the five families that is returned.

Can someone explain me how to have only the value of the vehicle family?