Waleed bro, wishing you the best of luck and choice on home-coming, let me just state on your above notions, that there's quite a difference of raw power of some 40-45 Hp's between an Xli/Gli and an Altis. Hence, no comparison here, the 1.6 does not struggle at all, yet "begs" for more weight on the pedal. I've never been satisfied with 1.3 in Corolla, purchased one in 2003 and sold with 300 kms odo right away in favor of the then SE Saloon.
Let me not project it as anything close to a BMW, but as a fully loaded budget, family sedan, you can't really ask for more in the sub Rs. 2 mil category of local cars. No "struggle".
As for your second question above, I can't say with surety on rain sensing wipers in standard version Altis. Plz try surfing the Indus site, yet I doubt that a price difference of abt 1. lakh or so would add only sun/moon roof. Maybe, maybe not.
Regards.