Still on the subject of Identity theft - a few security issues to consider when selling your car.
Does your car have an inbuilt GPS/Satellite navigation system.(SatNav) You could be surprised at the number of people, who, when selling their vehicle forget to erase the personal information contained on the SatNav.
This information may include names and addresses of family and friends - as well as your own, but also perhaps your bank and work location? This could be damaging for you if it fell into the wrong hands - obviously the same advice applies if you are selling a portable satnav device.
Also check carefully the car boot, side pockets and down the back of the car seats for any forgotton receipts, statements, letters.