Jasbreet Singh, 24, tried to chase the thieves as they hijacked him outside his home in Truganina.
His wife, Khushboo Khanna, was watching as he was knocked over, dragged under his car and his legs were run over.
Video footage taken by a neighbor’s CCTV shows Mrs Khanna’s penetrating scream throughout the incident
“When the car drove over his legs, he thought it was over, now his legs are gone,” she told 9News.
She said three thieves first surrounded her car just before midnight.
Her husband arrived to help before turning their attention to him and attacking as he reached for his golf club in his boot.
Mrs Khanna said the thieves snatched the key from her husband and took off in the car.
After the incident, Mr. Singh brought to Footscray Hospital with bruises, scratches and a wound on his foot all the way to the bone.
He had come home from his birthday dinner.
Mrs Khanna said her husband had been lucky that it was not his head that was run over.
His car was found early this morning in Southbank, but his attackers are still on the run.