Got a Panamera GTS a month ago. Chose this over the 991S, F10, and F13 (went into the decision in the M5 forum a while back). I really like the way the Panamera looks, but then again I bought my wife a 535 GT and used to have a X6 so I kind of like the hump back look...
Did a powder coat on the silver wheels (car was off the lot) and painted and installed new logos. Have not washed the car yet so sorry for the brake dust. I don't like the silver rim of the black Sport wheels anyway so powder coat was a really good way to go, also cheaper than ordering the black option anyway. Feel my car is much sportier now.