According to Snackspot we now have a KitKat Caramac floating about! Unfortunately since I'm in the U.S. it'll be a while before I can get my hands on one, but I imagine it would taste quite nice.
You want it real bad?
Yes, I am ashamed to admit it.
Got one today. I gave my girlfriend two fingers and she enjoyed it. I didn't think it was that Caramacky.
Also got a Jameson's Raspberry Rufffle from the same shop. That was much better.