Police are calling for witnesses to a single vehicle crash between Middleton and Goolwa.
At 10.45am on Sunday 17 May, a car rolled and left the road near the intersection of Port Elliot and Boettcher roads.
The 38-year-old driver was airlifted to the Flinders Medical Centre with serious injuries where his condition improved and is no longer life-threatening.
Port Elliot Road was closed to all traffic while emergency services were at the scene but has since been re-opened.
Police ask anyone who saw the man's silver 2010 Honda sedan prior to the crash to contact Crime Stoppers on 1800 333 000 or report on line at crimestopperssa.com.au.
Photo CC0 from pxfuel.com