Nice Fiat promotional video from 1968, bout the Spider & Coupe's are given time in the film, specially from 22.10 min in the movie enjoy https://youtu.be/aAPZfNeifHQ
In this movie all the Dino sessions is extracted, and copied into one 3 min movie.
I think the test track session in the end of the movie, is from Fiat's test track La Mandria on the outside of Turin. https://youtu.be/5x1Sy7LOEnQ