It's been a more than a year since I last wrote on this thread, and today I just found out the other 275GTC I'm aware of, 8457, was on display in Paris for the Retromobile show last week. The color has changed, but you can still see the car is equipped with a roll bar inside. I also found this article which was written a year ago: "This 1966 Ferrari 275 GTC 'Corsa' is a purpose-built race car with steel body and alloy doors, hood and trunk. It is fitted with rare 130 camshafts. The engine was built to full 300bhp competition specifications for endurance racing. The Ferrari bearing the chassis number 08457 is very unique; it was badged by the factory as a GTC and not a GTB or GTB/C. The steel bodied car was built for racing, specifically endurance competition. The long front end and potent engine made it a viable contender for the Nurburgring 1000 KM race in 1966, where it placed first in the GT (over 2 liter) class. It was raced the following year at the Nurburgring 1000 KM race but unfortunately suffered a tire failure and was forced to retire. It has since been house in a private collection, residing in the United States. A frame up restoration was commissioned in 1999 and the task was given to GT Motors. After the restoration it was entered into historic racing events including the North American Historic Ferrari / Maserati Challenge, Le Mans Classic, Le Mans Legends, and Tour de Espana. By Daniel Vaughan | Feb 2011" Unfortunately, there is no way for me to check if the other GTC I know has the same characteristics, which would mean that this 08457 is not so unique after all!