Pininfarina is a rather vast company. He was the CEO, but not at all the chief of design or directly involved in the design of the P4/5.
You've gotta be careful with these modern design projects. Design departments employ dozens of people, many of whom have different influences on their projects' final look and function. For instance, although Chris Bangle is credited to most of BMW's recent design, I doubt he lifted a pen during most of the process. Venari could also chime in on Fisker's actual contribution to recent AM design.