By Thomas Duff For Daily Mail Australia
Published: 13:56 BST, 5 June 2019 | Updated: 13:56 BST, 5 June 2019
A 20-year-old man has been threatened at gunpoint and carjacked after he advertised his car on several online classifieds.
Denham O'Sullivan advertised his white Nissan Patrol on Gumtree and Carsales for $38,000.
He met a potential buyer and an unknown woman at his family business just after 8pm in Caringbah, southern Sydney last night.
During a test drive, the man stopped the car on Eloura Road in Cronulla and pulled out a