Rank Site Address Latest monthly page impressions (millions) 1 Autotrader *73.5 2 Parkers Online 13.5 3 The AA 10.5 4 Auto Express 7.0 5 Jamjar Cars 5.0 6 WhatCar 4.0 7 Fish4Cars 3.9 8 Exchange & Mart 3.1 9 Top Gear 2.6 10 4Car 2.3 These are unaudited figures taken from publishers unless stated. The data used in this table is supplied by BRAD: Tel: (020) 7505 8458. For a free listing in the New Media section of BRAD, call (020) 7505 8263. *Figures from ABC Electronic.

Autotrader is the clear sector leader but the Emap-owned Parkers Online continues its own rapid growth as a service. The site, which aims to create a community of car-owning web users through a blend of car information and user groups, launched in January 1999 with 1.3 million page impressions.

It offers details on pricing for most UK used cars and a service for car owners that includes insurance advice and a guide to selling cars.

Advertisers include Lombard Direct, Ford, Tesco Loans and KLM.