Dee ihe na-aga n'ihu maka paragraf a - Mgbe e webatara ya na 1966, 275 GTB / C gbara ọsọ site na ọtụtụ ndị na-agba ọsọ na-enweghị onwe ha na ọkwa dịgasị iche iche nke nkwado ụlọ ọrụ Ferrari, gụnyere NART, Maranello Concessionaires, Scuderia Filipinetti, na Ecurie Francorchamps. Atọ 275 GTB / Cs banyere na 1966 24 Awa nke Le Mans
, abụọ n'ime ha gwụchara. Maranello Concessionaires-abanye 275 GTB / C (chassis 09035) nke Roy Pike na Piers Courage gbara gbara nke asatọ n'ozuzu ya na nke mbụ na klas, ebe Ecurie Francorchamps 275 GTB / C (chassis 09027) nke Claude Dubois na Pierre Noblet gbara gbara nke iri n'ozuzu ya na nke abụọ na klas. Mmeri ndị ọzọ a ma ama gụnyere 1st na klas na 1967 Targa Florio, nke Tullio Sergio Marchesi na-anya. Marchesi gara n'ihu merie 1966 na 1967 Italian GT Championships na-anya 275 GTB / C chassis 09007.