As long as the Ferrari serial number is intact you're good to go. I would think the same thing should be true a Porsche. A clone is a reproduction of a real car. It's not the real car.

"Clone: Cloning is a form of reproduction. Cloning is the process of making a genetically identical organism. The key word here is identical. If a car is called a clone then we have to assume that it’s identical to the original. That’s the basic definition of a clone. If the copy is not totally perfect then it’s not really a clone."

If the original VIN is in place then I would call it a restoration. You're returning the car to it's original condition. Even if very little is left of the original car.

Richard Newton
26 Years With a 911