I am the proud owner of a Tuxedo Black 2014 SHO non PP. I traded in my MKZ for a real car:-)
The only thing done to it so far is replacing the factory air intake with the one from K&N.
I started playing with cars back when if you wanted a little more HP you tinkered with a few things. If you wanted more you you tinkered with allot of things.
My very first car was a 1972 Mustang Sport Coupe (still am not a fan of Fastbacks) it came with a 302 4v, was swapped out with a Boss 302. When my father the old time drag racer drove the Boss engine he said the car was still to big and heavy for the motor. Shortly after that I received my birthday, Christmas and Graduation present. The Boss 302 was swapped out for a 429 Cobra, my father smiled and said now the engine is bigger than the car, be careful.
Now so many years later all I need do is tinker a bit to get what i am looking for out of my SHO.