The development of electric car sharing services has been so far, the prerogative of metropolis because of population densities and economies of scale and parking constraints. Democratise car sharing practice in medium cities is a political decision. Central government must support the development of car sharing in medium cities by providing subsidies/interesting loans. This financial measure could encourage the implementation of car sharing companies. It should be consistent with local policy measures such as: promotion of soft mobility, parking restriction and limitation of car pollution.