CMS Used CAR sell site with some templates (joomla/Wordpress)

I need to create a simple CAR catalog website. But with user sessions capable. It will be a catalog where the users will upload their car for sale, features, made, model, 4x4,..., price, mobile phone... I supose that there must be a template that does this. Is it's necessary to purchase a Joomla / WordPress template, please specify the price, and includ-it on the BID. you can see_ [login to view URL] as a site to use as inspiration. I'll give the ftp and Mysql users so the site must be created directy on my hosting. You must choose a design. good for car selling. try to choos everything with free templates if possible.