1970s contemporary short stories to scare kids. Lightbulb on the cover.

[Elizabeth]

Stories like the woman who is driving her car home at night and gets followed by someone flashing their lights. Turns out she has a man in the back seat with a knife. It’s not tales of the unexpected

[Mai]

Looking online I found the story you are talking about. It's called "High Beams". It is included in Scary Stories to Tell in the Dark by Alvin Schwartz but it was published in 1981 and it doesn't have a lightbulb in the cover. Maybe the name of the urban legend will help you in your search!
More info here:
http://www.scaryforkids.com/high-beams/

[Bryn]

Strangely Enough has a light bulb on the cover, but I can't recall if that particular story is in it.

[Rainbowheart]

Still looking, Elizabeth?