This photo appeared in the 'PS' section of Road & Track magazine in the early '70s. The car is the iconic Porsche 917 sporting an Alabama license plate. It seems that the owner, reputed to be Count Rossi of Martini & Rossi fame, bought a 917 and set it up for road use. The story goes that no European country would permit the car to be road registered so he had the car licensed in Alabama. I suppose that it passed muster with the Italian authorities since it was photographed on an Italian highway.
The '70s porn star mustaches and aviator sunglasses make the cramped accommodations of the Porsche look even more amusing.