Here's the story and
some more.
Would touring cars work for Kia? Considering how the brand is developing over the past few years, I'm surprised this hasn't happened sooner. Though the question is, what series?
The BTCC or WTCC would be a good fit for the Pro Cee'd, DTM would be curious (considering the Grand-Am/Super GT tie up and throwing a Korean manufacturer would shake things up) and I could maybe see the Optima in the V8 Supercars or Superstars.