I've only ever seen one manual 599 in my life, a couple years ago there was a Rosso Maranello (I think) example in at Lake Forest Sports Cars for service, and needless to say I nearly fell over when I saw the manual gear lever.
Now, I've finally found a video of one in action...and this isn't just a manual 599...it's a manual 599 with straight pipes being driven around Road America and the surrounding area at high speed. Being a current WI native who spent many, many summers at RA, this video just hits all the right spots. As if I didn't want a 599 bad enough. I don't know that I've ever seen this car for sale ever, I don't ever remember seeing a black 599 with a manual. Would love to know where this car is now.