Wow! I'm surprised so many people are this gullible. Not only is it fake, it's notoriously fake, just google it.
Warhol means nothing. In fact, Warhol was a troll of the art world, that was what he was about.
For one thing, look at her head -- it hits the side of the car on the back window, the angle of highest resistance, yet her face and neck are not only not broken, but show no distortion after impacting the car in the manner it did!
The best of my memory this was a performance art stunt using an actress and a staged car that was swapped while the people on the street weren't paying attention.

