Here is a "Driver's Prayer" I found from the Sacred Heart Auto League:
God our Father,
you led Abraham from his home
and guarded him in all of his travels.
Be with us now as we travel
and guard us every mile of our journey.
Help us to be attentive, cautious,
and concerned about our fellow travelers.
Make our highways safe
and keep us from all danger.
Sacred Heart of Jesus,
guide us to our destination
and help us to drive prayerfully and carefully.
Sacred Heart of Jesus, have mercy on us.