Police in Spalding are trying to trace a silver Peugeot 207, which was stolen after a burglar grabbed the car keys in a raid on a house.
The offender smashed a window at the home in Cathedral Drive, Spalding, and then stole an E-Machine laptop, a Nokia mobile phone and several sets of car keys.
He then used one set of keys to take the Peugeot, registration number D20 CLB, off the drive.
The break-in happened shortly after midnight on Easter Sunday.
Witnesses are asked to contact DC Nicola Stafford at Spalding Police Station on 101.
Information can also be reported anonymously to Crimestoppers on 0800 555 111.