autos search portal, relisted

I need a script (will be working in a website) that will act as a auto(s) search portal. The script will make search on popular portals like [login to view URL] [login to view URL] [login to view URL] etc (will have to work on about 6-7 portals). The script will have to make the search based on regular search options like, make, year fuel body type etc (see the portals i gaved) and will return results in a all-in-one page. For an example of how script have to work see [login to view URL] program, download install the 7 days trial version. Also, the script have to be made from start (the results) to support a SEO program.