Yes the Tigor does not not only get the boot extra but there are so many additional features.
A small clarification dear.:
I have cross checked the features of both Tiago XZA & Tigor XZA (from the feature list provided by Tata), but unable locate many additional features on Tigor than Tiago?
What I found was:
Exterior: Stylish Black finish on B-Pillar (not given in Tiago)
Infotainment: Tigor XZA has got only 6 speakers i.e 4 speakers + 2 tweeters), whereas Tiago has got 8 speakers.
Instrument panel: LED Temp guage (Not in Tiago)
Comfort: Multi drive mode (City + Eco) & Sports mode in Tiago but in Tigor it was given only Sports mode?? (Did they given wrongly?)
Tigor has got foldable armrest in rear seat with cup holders which is not in Tiago
Other than above, I couldnt really notice any additional features. May be, you have the car (Tigor XZA) and if you notice anything extra, please let me know (its just for my understanding only).
Thanks