Police are appealing for witnesses to a single vehicle collision on the A259, Friston, around 6.30am on Friday morning (25 March).
The vehicle, a blue Mini Cooper, was travelling westbound before it lost control.
The road was partially closed for around two hours while the ambulance service attended to the driver who was taken to hospital with minor injuries.
Any witnesses or anyone who has dashcam footage from around the time of the incident which could help officers with their investigation is asked to contact police by emailing collision.appeal@sussex.police.uk or call 101 quoting serial number 201 or 25/03.