They reversed the Shogun into the kiosk, causing it to collapse. The petrol station safe was buried in the rubble and despite their best efforts to retrieve it, the men got away on foot empty handed.
Detective Sergeant Mike Greenland from Force CID said: "We are following up a number of leads and forensic opportunities but also need the public's help to try and find these men.”
One of the men is described as around 5ft 8ins tall. He wore a light grey hooded jacket, a black balaclava and dark bottoms.