My brain goes something like this:This is why I love long car rides. I just play my music, and let my mind wander. Ever since I've started driving, I miss these opportunities to introspect about life, the universe and everything..
I can think of anything really depending on my mood, on what's going on in my life, etc. It can go from the silliest things to an important decision/problem. When I was a little kid though, I used to imagine Aladdin jumping from car to car beside me - kinda like those games I used to play. I would totally lose when there wouldn't be much cars