Introduced in 1969 at the Turin Motor Show, the second series of the Duetto is characterized by its “cut-off tail,” in accordance with the aerodynamic theories advocated by Professor Kamm. This design feature creates a greater forward thrust due to the sudden separation of air vortices caused by the truncated tail, resulting in increased advancement.

Consequently, the bumpers were modified to stainless steel with rubber profile protection. The headlight covers remained standard on the 1750 and later on the 2000 until around 1980, but they were never adopted for the 1300/1600 Junior models. Additionally, the windshield was tilted at a greater angle, benefiting both the design and aerodynamics.

Starting from 1972, the lineup saw the return of the 1600cc engine (AR536 engine as an option, as seen on the GT models), with the Spider Junior 1.3 and 1.6 versions unified in terms of equipment, except for the Hellebore wooden steering wheel provided on the 1.6.

In 1977, the 1.3 version was no longer available, and until 1979, only the 1600 Junior version, along with the 2000, was sold. The 1600 Junior received some updates introduced on the 2000 by the end of ’78.

• Alfa Romeo Junior 1300 Spider (cut-off tail)
  
• Displacement: 1290cc
  
• Power: 89 horsepower.