Autotrader online, the well known magazine peddling used cars, has become an excellent an all-purpose car site. You can access the magazine content and browse a directory of online shops selling car-related products. There's a useful set of tools to help with buying a new car but the real pull is the Used Cars section where you can search a database of 140,000 vehicles. You specify your postcode and how far you're prepared to travel and Autotrader tries to find a deal for you and with colour pictures to accompany each car, you know exactly what you are getting.