I found it. Alfa Romeo Scarabeo Spider by OSI'1967.
Further development of the prototype Scarabeo, introduced in 1966, Scarabeo Spider, was tested at the track in Balocco in 1967-69 years.
The car has not received a complete body, it has no fairing the engine compartment. Vehicle height is just over 1 m, length - 3.72 m, width - 1.56 m prototype weighed only 700 kg and a top speed of 200 km/h.
Now the car is in storage Museo Storico Alfa Romeo in Milan.