Magnetic montrosities that feed on iron content. Including human blood.
I'll hide your name inside a word and paint your eyes with false perception.Motorists have all kinds of fables surrounding the road, demon bikers (see: Biker's Bell.) Ghosts of the past (Horse riding ghosts, or ghosts cars.) Undead Hitch hikers, you could easily adapt this, maybe into some kind of beast.
"Every anime character is bisexual until proven otherwise." - A comment a found on youtube.^ That's an interesting idea, especially since it is basically a modern version of an old Appalachian folk monster, the Gardinel. Manly Wade Wellman describes a Gardinel:
The few that's lucky enough to have gone into a gardinel and win out again... tell that inside it's pinky-walled and dippy-floored, with on the floor all the skulls and bones of those who never did win-out; and from the floor and walls come spouting rivers of wet juice that stings. ... and all at once you know that inside a gardinel is like a stomach."
It would also work as a lonely motel, or isolated store.
edited 26th Feb '11 8:56:57 AM by Madrugada

Quick! I need some monster that can be the equivalent of the Kraken for modern day drivers...NOW!