1. Always take somebody with you.
2. Always view the car at the seller's home. Ask to use the toilet if you are not invited in.
3. Inspect all the relevant service history and registration documents at the time of viewing
4. If you find a car you are sure you want to buy, invest �20 in a HPI check.
http://www.hpicheck.com/newfrontend/
5. Suspiciously low mileage? Check the driver side carpet, seat and the pedals for wear and tear.
6. Put the mobile phone number and landline number in to google - does it bring up car adverts?