Auto Trader
Address: www.autotrader.co.uk, Rating: 5/5
The king of online selling – this is the first port of call for many people looking to buy.
Ads start at £19.99 for two weeks on the website (£9.99 if your car is worth less than £1,000), and rise to £44 for three weeks online and in the magazine. There is comprehensive buying and selling advice, plus news, reviews and insurance and loan info.