The car in the picture has open wheels. Was it originally built as a sports car and is later being run in stripped form in a Formule Libre race?
Sorry, but I don't know. Oddly enough, my notes give the class the car was running in, and this would suggest it was a sports car event. The meeting had an eclectic mix of cars, and as usual at Watkins Glen it was a case of "run what you brung".