The only 4 door Ferrari in the world belongs to the Sultan of Bruni He bought 2 456's (or 355's I don't remember for sure) and spliced the together to make a 4 door. I think I saw the write up in Foza or Cavalino.
Pretty good. The right-clicking only worked because I intentionally linked the picture rather than copied it (I do respect copyright, as well as the intentions of the inventor of HTML and HTTP). The page that the picture of this car came from is http://www.tobiasullrich.de/monteverdi/cars/hs375lfi/
And yes, it is a Swiss car that was built with a Chrysler engine and a Fissore body. In my opinion, it is one of the most stunningly beautiful car designs ever and the silhouette seems to say "I want to go fast, fast, fast!" even when parked.
BTW, the manufacturer, the copyright holder, and the inventor of HTML and HTTP all seem to be within a 100 km radius.
The four door car could be the PININ. An experimental Ferrari. One off four door. The Pinin was actually built by PininFarina but with Ferrari's participation. For a while there was talk of Ferrari building a short of them.