(from last's year camping trip)
So here are some of the things we do in the car:
Find things from our surroundings that start with each letter of the alphabet (i.e. A=animal, B=barn, C=car, etc.)
Find the letters of the alphabet from signs and licence plates
I Spy (although hard in a moving car)
I Got It! which is basically 20(+) questions
Singing - we like soundtracks from Frozen, Trolls, Sing, Mary Poppins, and a new one, Teen Titans Go to the Movies.
Watching the map and setting timers - E has a watch that he can set timers on so if we tell him we will be at our next stop in 45 minutes or whatever, he can set a timer and he enjoys checking in to see the countdown.
Napping and meditation - for real, E once meditated on our whole car ride home from Algonquin. (He learned about mindfulness in SK.)
For this trip I put together little surprise packs of books, toys, games, and candy. I made equivalent ones for each E and Q and can hand them out when we need a distraction. I bought a few things at Dollarama but also put in some books and toys we already have.