A childhood belief about cars

When I was young, my family moved alot due to my father's work. We racked up alot of miles on the Interstates along the East Coast. We'd move from north to south and back again...it took forever, it seemed neverending. I was afraid that eventually we'd never be able to stop, just keep going and going, up and down hills, the sun always following us. Even though as I grew up, I knew that this was silly, I still, to this day, have nightmares about it.