It certainly would be nice if all Koups don't have these! All the Koups Ive seen have them -- on the dealer's lot, my Koup and my daughter's Koup.
Attached is a picture of where they are occuring. The "V" shaped one starts out as a line but continues to distort and look like a "V" as it gets colder. They do go away in warm weather - or when the sun warms the sheet metal. The lines are more pronounced on the passenger side but you can see them on the driver side too. To see them stand at the front of the car and look rearward along the car in the reflection - preferably something mirrored with lines to see them. I do not remember seeing them during the winter of 2009 (bought mine in Sep 2009) but then again it wasn't a real cold winter as this one has been. The line crease I hate the most is the one in the doors -- it makes it look like someone used their hip to shut the door and put a dent in it.
ForteSX2.4's diagram shows exactly where I get my two creases. Both are very very faint. They seem to just be on the passengers side and I only saw them for a couple days while the temp was between -10 and 10 degrees F. The other day at 40 degrees I couldn't see them.
We are in south Georgia and have had as many as 8 creases at one time. We checked a dealership outside of Atlanta yesterday and theirs had visible creases
in about 60 degree weather.
KIA's answer... We know, don't have a solution, have a nice day!