The Porsche 550 Spyder Panamericana is named after the Porsche 550 race car, that participated in the 1500cc class of the 1954 Carrera Panamericana. Porsche began naming following vehicles with the "Fuhrmann" flat-4 engine with "Carrera" after the victory in the race.
Need for Speed: Porsche Unleashed
The 550 Panamericana only appears in the PlayStation 1 release of Need for Speed: Porsche Unleashed as a Race Class vehicle in the Classic Era category. It is a little bit slower than the 550 A and is also more expensive to purchase. The Panamericana is distinguished from the 550 A by its livery.