So far, I HAVE NOT found rails that fit my 2016 Soul EV.
Yesterday I pulled off the roof trim, took some pics and sent them to a guy at SSD rails.
He said:
"You did NOT have the threaded holes under your trim so the Hybrid rails will NOT fit your EV. We don’t make any rails currently that attach to the flanges you have on your Soul so don’t order any. The Hybrid mounts are only around twenty some inches apart."
He also said they no longer sell the ones Goofcat used (above).
Since no one else has posted pics, I put some up here so people know what to expect when taking off the trim. I noted the distance between the metal supports, etc. If you did have to drill holes for a rack, you would only have to drill the 2 small end pieces, not the long center piece of trim.
BE CAREFULL and don't pound the center trim on like I did, causing little dimples at every clip (pics included).
http://rncook.com/2016KiaSoulEvRoofRack/
So, to sum up, I took pics of how to connect rails, but have not found compatible rails.