But incredibly Williams pulls himself out of the upturned car and trots off as if he had been involved in a minor bump.
The track confirmed Williams was unharmed in the smash – which was first time in the history of the circuit that a car had flipped over a safety fence.
Footage of the crash has been viewed more than 1.3million times after it was uploaded to Facebook.
Most were glad to see the driver walk away from the accident.
One commented: “Glad your okay Austin! You’ve got to admit, that was pretty sweet.” (sic)
But another joked: “Glad to see driver walk away but I really think someone should sign him up for Olympic pole vault.”