preschool toddler gamesIdeas for toddler and preschool games for the car?

I want games to play in the car on long trips with a 17 month old and a 3 year old or things to pack to keep them busy.
I already know to pack stuff to draw with any thing else?
thanks!
mini dvd player with some of the favorite movies
I spy
books on tape
magna doddle
small white board with dry erase markers
children music to listen to
plenty of snacks and drinks
If she is potty trained, maybe bring a small potty so you don't have to stop at rest stops/gas stations a lot.
for your 3-year-old, you could play the ABC gpreschool toddler gamesame (where you look for a letter, starting with A, and go all the way through Z) or a number game, like counting all the blue cars you pass until you get to somewhere between 10 and 20 (already have the number picked out, ofc). You may also want to take some books for your kids to look at (as long as you don't mind a little mess of books being in the car). Maybe even have your 17-month-old point out different colors...like tell him/her to find something orange outside the car, etc.
If you have a DVD player, movies knock out at least 2 houpreschool toddler gamesrs or so,....snacks (counting how many goldfish crackers or whatever) favorite toys, books, color books with crayons,....the "silent" game is ALWAYS a good one (sometimes puts them to sleep after playing everyting else first)
play the abc game start at a and go al the way to z and you need to look for words that start with the letters your looking for. :]
give them window markers so they can draw on the windows. they'd love that. play i spy. we used to always do that when i was little.