Police are appealing for witnesses to a collision on Saturday (March 29) on the A22 near Hailsham.
At around 4pm on the northbound A22 between Hailsham and the Boship roundabout a black Ford Focus lost control and left the road before rolling and finally landing on its roof in the grass verge.
Fortunately the driver, a 36-year-old man from Pevensey, escaped uninjured.
Police are hoping to trace a black Land Rover Discovery that pulled out of the Bushy Wood campsite to join the northbound carriageway at the time of the collision.
Any witnesses to the collision or anyone who can identify the Land Rover should contact Sussex Police quoting 1025 of 29/3.