You can download it for free from the WinRAR website. Using it for free is a whole other matter, which involves software piracy that is against the rules to discuss here.
However, there is the free 7-Zip program which can read RAR archives. Not sure if 7-Zip is being actively maintained anymore, but it's probably your best free AND legal option regardless.
$16,000 used SUVs
Whether you like your SUVs cute or capable, or some blend of the two, we've got a wide variety of choices in Roadshow's first collection of Editors' Used Picks.