Police are appealing for witnesses following a collision on the M11 at Duxford.
The collision took place at about 6.30pm on Thursday (June 18) on the north-bound carriageway between junctions 10 and 11 and involved a silver Peugeot and a white Ford Mondeo. It is believed the driver of the Peugeot failed to stop after having hit the Mondeo from behind.
The driver of the Mondeo suffered minor injuries. The Peugeot is believed to have headed off on the A428 Croxton towards St Neots shortly after the incident.
The car's front bumper was left at the scene, but the number plate was not attached.
Anyone with information should call PC Steve Gedny on 101 quoting incident 441 of June 18.