bear with me, as the details are vague. i remember a movie where a couple of kids are left alone at home, and their parents are out driving in a storm. i believe the parents fall asleep at the wheel and they disappear. they later are revealed to be in some kind of scary town in an alternate world/time, etc. the kids try and find their parents and somehow they either realize they need to fall asleep at the wheel too, or the son just does that. the kids succeed in rescuing their parents, and the only thing i remember from the end of the movie is the kids being trapped in the scary town, and the protagonist says “ha, i have a chevy impala” .