What is the rarest production Donzi made including LE's, SE's, etc......? As far as I can tell, it is the 18 Testarossa, provided only 8 were made. I know there were only 4 Criterion SS's, but I would think you would put all Criterions together. I don't know how many Corsicans or 14's were made. Not counting the Donzi dingy.