With regard, second, to whether the said prohibition is necessary, account must be taken of the fact that, in accordance with the case-law of the Court referred to in paragraph 61 of the present judgment, in the field of road safety a Member State may determine the degree of protection which it wishes to apply in regard to such safety and the way in which that degree of protection is to be achieved. Since that degree of protection may vary from one Member State to the other, Member States must be allowed a margin of appreciation and, consequently, the fact that one Member State imposes less strict rules than another Member State does not mean that the latter’s rules are disproportionate (see, by analogy, Case C‑262/02 Commission v France [2004] ECR I‑6569, paragraph 37, and Case C‑141/07 Commission v Germany [2008] ECR I‑0000, paragraph 51).