Presented in 1969 at the Turin Motor Show, the second series of the Duetto is characterized by the “tail cut”, in accordance with the aerodynamic theories advocated by Professor Kamm, for greater forward thrust determined by the vortexes of air that detaching itself in suddenly, due to the truncated queue, they cause greater progress. The bumpers were modified accordingly, in stainless steel and with protective rubber profile, the headlight covers remained standard on the 1750 and later on the 2000, until about 1980, but were never adopted on the 1300/1600 junior, beyond to a greater inclination of the windshield, with the benefit of design and aerodynamics. The canvas top was also extensively modified, with attachments completely internal to the body, for greater waterproofing and ease of use. The length went down from 4,250 mm. to 4,120 mm.
The 1750 Spider Veloce, heir to the one with a “cuttlefish bone” shape from 1968, had new interiors with a center console more linked to the fashion of the 70s sports cars and new were also the tachometer and odometer contained in two eyelids instead of one as the previous version, handles flush with the bodywork on the doors defined aerodynamic. In 1971 it was first flanked by the 2000 Fast Spider version, with a 2000 cm³ engine identical to the sedan and GT versions, with 132 hp. All the “1750” versions left the scene definitively in 1972 replaced by the new “2000” range.