They're standard across the board. On my (all) S there's a total of 4 stalks: Right gear shifter, left wiper/light stalk, left AP stalk and left steering coloumn adjustment stalk
Hey now, some of us do own Model S's with a different stalk layout than you fancy AP folks. I am sure you enjoy hitting the cruise instead of the blinker accidentally every time you get one as a loaner just like I do when I get an AP loaner.