Is the pillow to protect the car or the kid?
That there is what you get when you replace the family horse with a T...
Early child safety practice. "Sorry junior there's no room in the car so you're riding home on the hood"!
I hope the kid didn't travel like that. One of my dad's stories is about a family near West Plains, Missouri, who bought as new 1936 Chrysler Airflow. The family had twin sons. When the family went for their first ride in the new car, the twins were sitting on the hood. They hit another car head-on and the twins were killed.
Pillow probably there because that would be a "hot seat" after a few miles.
What could possibly go wrong?