During long car rides it could be a good idea to play a car game with the rest in the car, share your best ones here! I will start with one of mine.
What is in your pockets?
You need: a cellphone and phone numbers.
How to play: Agree on a person to whom you have the phone number, then everyone guess on three things the person might have in hes/her pocket (if you guess "nothing" that counts as all 3 things). Then one of you calls the agreed person (not the driver! think on the children!)and asks what it is in hes/her pocket. Every correct guess gives one point, exept "nothing" with gives two.
Variations:
Take turns to decide on a person.
Ban some guesses (like wallet, keys and so on)
Ban some pockets(like jacket or pants)
Bet something.
The one with the least points get a punishment agreed on before the game starts.
Use youre imagination.