I'm the youngest of four, 12 years between me and my oldest sister. In the late 50s and early 60s we made several long drives to see relatives in either Mississippi and Wyoming from our home in New York. We played the "license plate game" and many others, but the big one was the alphabet game, where we looked for the letters of the alphabet starting words on signs. My brother, the second oldest, and I and my two sisters would form teams, usually boys against girls. One team would go from A to z and the other team would go the other direction.
I will always remember, my brother and I were trying to find a Z to win the game, but we were about to leave a small town and knew we were going to be without many chances for that, while the girls only had to find C, B then A. The last sign in this little town was for Zilche's Garage. I was probably seven or so, which would have made it 1962.
I also remember being put to bed for a nap on the package tray area behind the rear seats under the rear window (in a sedan, not a wagon). Today my parents would be arrested for having put a child up there.
Ah a favourite game of mine today spot the difference in language between States/Canada/Australia and English English.
We say parcel shelf LOL and a saloon not sedan LOL.