The Veraneio II and Bonanza models were made on a Série 20 basis, so they could indeed have the Série 20 chassis code. But the name was the one given by Chevrolet to the A/C/D-20 "picapes".

bah non je l'avais fait : http://www.imcdb.org/search.php?resultsStyle=asList&sortBy=0&make=Chevrolet&model=- Veraneio
edit: ah par contre je vois que j'avais oublié le Chevrolet Bonanza, je vais rajouter ça

Seems to be another forgotten change

They can still copy/paste (or we may get "è" instead of "é", which seems a common mistake from some Italian admins :D)

[Série 20] (in Portuguese), like in the brochure?
I hope it won't be problematic for admins with "non-azerty" keyboard...

[20] alors ? Ou [Série 20] en toutes lettres?

Unless we want to use the accurate name given by the make instead of the "common use" one. Somewhat like the "Apache" / "Task-Force" or the "Cheyenne" / "C/K-Series" habits, I think

It is not very important to mention, I think. I added the D-20 to link it with the other D-20, thinking they were more related than that.

What about a possible D-20 / Série 20 change?

I thought it was what you mean with your post
If it is just the chassis used for that and not more, indeed it is probably not worth mentioning it