Help to identify my Fiat 128 3p

[Arakern]

Hi to all
Could someone please list the versions of 128 3p built and how to identify them?
I have a silver one with the black and white stripes decals on the sides/bonnet, black bumpers, and a folding sunroof (did they do a factory sunroof or would this be a aftermarket item?)

So far I had found 3p described as :-
128 3p
128 3p Berlinetta
128 3p Sport
128 3p Berlinetta Sport

Are these all different versions and how to tell them apart

Many thanks