I'll try and help you out here with what I know.
I had a CANADIAN 1998 Mystique GS SPORT with a Zetec and ATX.
I had no anti theft system,no trunk spoiler,and I had grey cloth seats,60/40 folding rear seats,fog lights,tachometer,power windows,locks and mirrors,cruise,AM,basic am/fm/cassette,ABS,15" 6 spoke alloys,rear drum brakes and I think that was it.
I don't know what goodies the sport had. I think it actually had less good stuff.
As for the licence plate,3 plastic rivets hold it on,obviously leaving large ugly holes when you remove it. Don't take it off unless you're going to properly fill the holes and make it look like they were never there.
