THIEVES broke into a site in Hampshire and drove off with £30, 000 worth of rough terrain vehicles on the back of lorry.
The three bright orange Kubota RTV900 XTs were taken from Station Road in Winchfield.
Investigating officer, PC Elizabeth Pirie, from the targeted patrol team, said: “They are all but immovable without a key and a large lorry would have been necessary to transport them."
The incident happened sometime between 6pm on Monday, December 17 and 8.30am the following day.
Anyone with any information can contact PC Pirie at Aldershot police station on 101 or call Crimestoppers anonymously on 0800 555 111.