Does anyone know if the "Fiat Grande Punto" shares the same windscreen as an APE as "Autoglass" systems shows an APE's as an FGP one.

Yup, all the type 199's are the same, Be it the Grande punto active all the way to the Abarth punto evo. List is as follows:

Grande Punto
Grande Punto Abarth
Punto Evo
Punto Evo Abarth
Punto 2012