Where can i buy and compare used cars online?

Am in Liverpool, i want to buy a used car %26amp; want to search online, can you pls recommend a good site where i can search for used car at a cheaper rate by individual.Where can i buy and compare used cars online?
Auto trader is good. www.autotrader.com. They have many used cars and a research page you can compair as old as like 1980. I would also go to consumers affairs to check for recalls. Also MSN auto %26amp; yahoo autos are a good source for info on specs and technical data. Both have bluebook info also.Where can i buy and compare used cars online?
I think the best are Autotrader and Cars.com. Yahoo cars is just a repackaged Autotrader.



You can also look at Carmax.com.



If you need information on used cars, check out edmunds.com.

sea ray