If the thought of your child driving out on the highway with no supervision scares you, you might find a little comfort in having a priest bless the car.
As Christians we believe that the spiritual world matters and prayers to God are never ignored. He can protect us and willingly does so, especially when we freely put ourselves under his providential care.
So if you think you need some extra prayers on the highway, bring your car over to the parish office and request your parish priest to say a prayer of blessing and protection.