Yes Grande is value for money, ideally difference should be of the sunroof only.
1.8 non grande has some things better then 1.6 only.
The engine and transmission, sports mode, cruise control.
Retractable mirrors,
Projector headlights with Auto cutoff lights ( when you take the key out lights go off).
Altis seats but in fabric (rear recliner and 30:40 split).
And android panel.
Foglamps with switch on headlight stalk.