I would not go all out on the ext carbon options (or int carbon options) since a highly optioned car would likely sit for a while before it is sold not to mention that you would not make back the money you put toward these highly priced options (of course this also depends on how long you plan to keep the car before you flip it). IMO...I would definitely skip the rear diffuser or the engine bay carbon since these are the 2 more expensive ext carbon.
Seriously? who will buy a poorly-optioned Pista? IMHO this pista will have to be offered at a significantly lower price to be able to find purchaser
if you're planning to keep it then none as they are a waste of money (aside from the wheels) if you intended to sell it at some point then all is a must
If you are in europe you can't jump the carbon options you mentioned....and it will look odd if you don't complete the car with all exterior carbon fiber. I saw some pictures of cars with half carbon and half plastic, to me they look terrible. On my car I went full carbon but I love carbon fiber and this will be my first special edition, can't wait untill 2020!!
No CF on a Pista will brand it as a cheapo and will hurt its value 100K or more. Do NOT listen to this advice.
When I specced mine, full carbon exterior is about $33k, full carbon interior is about $30k. I feel like it's actually great value lol. On my 812, $100k+ option didn't even get me half carbon that the Pista has.
Predictions are difficult, specially when they're about the future If one looks at the Speciale market, the highly specced examples struggle to sell for the original MSRP while the poorly specced (of which there aren't many) just struggle to sell. In both cases, they sell given the price is right - what the right price means exactly in depreciation loss is not completely clear though.
Making it shorter, in which market are you getting the pista? in europe if you dont go full carbon thinking about the "free of charge" items the car will look odd (I don't want to say worse). My personal opinion in europe you must go full carbon....I will never buy a car that is half carbon and half plastic.
Keep your MSRP low - you will ALWAYS get out fo your car quick and net the best profit - ballooned msrp cars are a poor investment for resale - been down this road plenty of times - for carbon the rear grill and slats are good to have the rest doesnt matter