Vehix has launched a new service that allows car sells to post listings on the company’s Web site for free.

Visitors click the “Sell Your Car” button on A downloadable guide with listing tips and instructions called “Selling Your Car Online” is also available.

Prior to launching the service nationally, Vehix tested the service in May and June 2008 in two markets — Chicago and Minneapolis. In Chicago, Vehix added more than 1,500 free listings and the Minneapolis market added more than 1,300 free listings. Overall, the average daily searches of vehicles in these two markets were up 67 percent.