On Thu, 14 Mar 2013 18:47:24 +0000, ARW wrote:

I have no paperwork at all. All I have is a car with an NI number
plate and the keys.

Any ideas?

All the DVLA website says is "contact the DVLA"

Have you nicked it or has someone given it you to settle a debt or
what? Or should I mind my own business?

I found it.

Park it somewhere WELL away from your house for a few days.

Then contact http://www.dvlni.gov.uk in the first instance.