Porsche built a non-roadgoing “Package Function Model” of the convertible body style. It was intended to assess four criteria as to the model’s suitability for production.

Porsche’s four-door luxury GT still had a ways to go. Long story short, say 'hello' to the all-new, third-generation Panamera , perhaps the first-ever truly handsome four-door Porsche. This ...

Porsche built a design study for a convertible version of the Cayenne SUV that featured a roof modeled similar to the one featured on today's 911 Targa sports car.

The coupe to some degree was finally realized with the current third-generation Cayenne in the form of the four-door Cayenne Coupe. The convertible today sits in storage at the official Porsche ...

The first four-door Porsche project actually stretches all the way back to the 1950s, ... See Also: Take A Look At Porsche’s Secret Cayenne Convertible Prototype That Never Made It To Production.