Car consumer guides, advice and useful stuff.
Below is a list of web sites that you may find useful when buying or selling a car. (listed in no particular order)

Peach or Lemon
As superb site! If you have been dealt a lemon, go to this web site and leave a comment to warn others. Find out what other people think about your make/model of car... your dealership may be telling you the problem is a one off, but you may find that many ther people are having the same problem!
www.peachorlemon.com

CarWatchUK
For a fee, Checks out vehicles specifications and history of last owners, convictions, damages, whether the vehicle has been reported lost, stolen or write off.
www.carwatchuk.com

HPI Check
Traces vehicle histories to uncover if the vehicle is stolen, has finance outstanding, plate transfer or accident damaged.
www.hpicheck.com

5ive-o.org
A fairly informal forum frequented by police officers. The site's general theme motoring legal issues. If you want advice about staying on the right side of the law, this is the place to go.
www.5ive-o.org

Pepipoo - helping the motorist to get justice
General advice and support to the public on motoring and speeding issues free of charge, and also direct support in key individual cases.
www.pepipoo.com

Money Saving Expert
It covers cars, but it's not just about cars... it helps you save money, so what's not to like? This site will keep you up to date with info, news, advice, as well as providing links to other sites that save you money, such as Petrol Prices