Police have appealed for information after car believed to stolen in a ram-raid was sighted on the Hume Highway.
Three cars were stolen from the M1 Garage in Somersby on the Central Coast on Sunday night.
Southern Highlands Police officer-in-charge Inspector John Klepczarek said there were unofficial reports of a vehicle sighting at 7-Eleven in Pheasants Nest and in the Gunning/Goulburn area.
"It is described as a silver Commodore Walkinshaw, decked out with sport attachments," Inspector Klepczarek said.
The owners of the car dealership took to Facebook on Monday morning to express their frustration and offer a reward.
"The bastards got us last night and took three Commodores. We will pay a $20k [$20,000] reward to get these guys. Low life scum," the post said.
Anyone with information is asked to contact Southern Highlands Police Station on 4869 7899 or their local police station.
Read more: Botanic Gardens appeal for education centre