CarsDirect.com is perhaps best known for their upfront pricing website. However their because they own a network of web properties that generate over 20 million visitors a month, they are also a great avenue to advertise your used cars. The following information is taken directly from their website. * We know our auto leads are high quality because 62% of them convert to sales within 6 months (Experian 2007). * Over half of our traffic is organic * We use a proprietary quality assurance system to filter our auto leads * Get features such as: Dealer ScoreCards (for new and used leads), expert customer service, and extensive branding opportunities. * CarsDirect recently received top honors with the Diamond Award win from the Dealers' Choice Awards with Best Value in New Vehicle Leads * CarsDirect has also received accolades from: Yahoo Internet Life, TIME Magazine, Forbes, PC World, and MSNBC.