THREE Mobile - Film Riggers had to lift a car into position with the use of a spreader beam & crane, then safely secure it to the edge of the cliff.  The car still needed to have a rocking effect to show that it was teetering on the edge.  The puppeteer had to be secured behind the car directly above the massive drop.

Links:
https://youtu.be/_6jl5RoyMek
https://youtu.be/gJoNyDxVQo8