I wanted to thank everyone for this discussion. It is very helpful as a "getting started" thread on these cars. I have been a Mustang guy for many years, so this is a new and fun game to take part in.
I just picked up a 11 MKS for $15,450 w 65k on the clock (every option except the ecoboost appearance package, and adaptive cruise control). It doesn't even have a rock chip on it, thanks to how well the older gentlemen who had it before took care of it...I still can't beleive how cheap I got the car for...
Anyhow..the fun will begin very soon. I was hooked when it beat out my lightly built and tuned F250 PSD, and by beat, I mean walked...lol.