Full Name:  911 Full 4-Seater 
Production Type:  Concept/Prototype 
Body Type:  Coupe 
Car Seating:  4 
Production Run:  1969-1969 
Produced In:  Germany 
Introduced At:  Never shown. 
Original Price:  Never sold. 
Number Made:  2 units 
Outline of Number Made:  Only two protypes were ever produced, each slightly different. 
Taking a Porsche's appeal and stretching it? It wasn't the first time and it
 wouldn't be the last time. In the late 60's, Porsche as a company was
 undergoing important changes, while the model range itself was
 remaining rather static. The 356 was long gone, and save for the lower
-market 912, the 911 was all alone: the company was living on the rather
 specialized offering of two person sports cars. There were some things
 resembling seats in the back, as attested by their shape and cloth
 covering. However, these attempts by Porsche fooled no one, and owners
 would at most place small children or, better yet, dogs, in the rear
 seats. Why not make the car more practical?
The idea has been around for a long time. Porsche's roots were with the
 Beetle, the famous people-mover, and plenty of work had been done with
 expanding the size of that car. The 356 itself had four seat prototypes
 built in its era, and during the development of the 911, 911-like cars also
 featured larger, more accommodating rear. The progression to get a four
 seat 911 on the drawing board was natural. Two prototypes were built in
 1969, which Porsche based on the design of the contemporary B-body
 911. The wheelbase was extended about half a foot through the area
 between the rear edge of the door and the rear wheelhouse, precisely
 where the extra space would be needed for the rear passengers.
As is common with such projects, each of the prototypes incorporated
 different styling. One's looks merely resembled that of the 911, a truly
 extended version of the sports car. The other car, had a tale that was more squarish, and also featured larger
 lights. Most notable is the rear-quarter windows, which some have
 remarked in a decidedly uncomplimentary fashion resembled those
 of an Opel Kadett coupe.
Ultimately, neither was very attractive and they were not approved for
 production. One did end up sticking around the factory for a number of
 years, serving as development hack. However, this would not be the
 end of the effort to expand the Porsche 911 beyond the two seater
 configuration. In the late 70's, Porsche launched its 928, which it was
 quite convinced would take over from the 911 a true four seat
 evolution. That did not end up being as successful as envisioned, and the
 911 still remains, seating configuration unmolested. In the early 90's,
 Porsche yet again added more seats to a 911 prototype, the four door
 989 saloon, which did not enter production either due to cost concerns. Its
 looks did carry over to the then future-generation 911, the 996.
 Nevertheless, it seems we will, over the coming years, definitely see the
 911 grow to sport four seats. Building on the success of their Cayenne
 SUV, Porsche has confirmed that it will produce a four seater model,
 which will obviously take styling cues from the venerable 911.