The P3D- definitely still exists, I just placed an order for one yesterday. It seems like every rep will tell you that you won't be able to find one and that they doubt Tesla will produce more. I have been finding them pretty consistently since mid summer, at least a few per week pop up. Just yesterday when I placed my order there were 3 of them available, albeit for a very short time as they are highly sought after. You just need to find a rep who knows what they're doing, and call literally everyday to have them check inventory, and you'll be able to find one.
It has the 19 inch sport wheels on it. I would have preferred the 18 inch Aero though. Will probably look to trade with someone as soon as I take delivery.