honestly, i never really understood the desire for the delayed dome light and/or headlights. To me that is just an unnecessary drain on the battery and in really cold weather, it can actually be a problem.

my boss drives a mini van that has the delay on the headlights and they stay on a LONG time.. seems like at least 3-5 minutes. Why?

Maybe the designer had a long walk to the door at their house.

When I get out and close the door on our 96 Voyager at night, I walk slow so I know the interior lights go out.