AS A Goondiwindi man remains in a critical condition in hospital, a witness to the horror crash has come forward to police.
The Forensic Crash Unit is continuing with investigations into how the green Holden Commodore the 35-year-old was driving left the Toowoomba Karara Rd and slammed into a tree at about 9.20 on Saturday morning.
The driver remains in a critical but stable condition, with head, spinal and pelvis injuries, after being airlifted to the Princess Alexandra Hospital in Brisbane.
First responding police and the FCU had already spoken with a witness who had been first on scene at the crash, but required more details.
After a media appeal, police reported the witness had come forward and investigations are progressing.