There was a news story here in town a few years back where a private citizen - not cop - brought a ghost car (driver passed out) to a stop by driving up in fron

There was a news story here in town a few years back where a private citizen - not cop - brought a ghost car (driver passed out) to a stop by driving up in front of it, making bumper contact and then braking both to a stop. Not recommended! But can be done even without adaptive cruise control.