S/n 1187GT, a one-off Coupé Speciale, was visually akin to the third series 410 Superamerica by Pinin Farina, but distinguished by its uncovered headlamps and flat bonnet. This five-window coupé combined the front and rear design of a production car with additional side fender vents. The car made its debut at the 1959 Geneva Motor Show and was owned by Emanuele Nasi, a member of the Agnelli family.