I Spy
A classic car game with simple rules. The leader of the game picks an object that everyone can see, then gives the others a clue by saying, “I spy something …” (Say its shape, color or size). The other players ask questions about what you see and you only answer with “yes” or “no”. The first player who guesses right becomes the new spy (leader).
A to Z
Find words for all the letters of the alphabet starting with “A”. Have the players take turns, after “A”, go to “B”, and so on. Can you get to “Z” and finish the alphabet? Alternate the starting person at the start of a new game so that everyone gets a chance with the challenging letters. (For younger players you may want to skip the difficult letters.) This game is best if you are not on a highway.
Great ideas and I especially liked your “Are We There Yet” suggestions!