Altis 1.6 is basically a gli with the badge of an altis, for a filler, it cost around 21.5 with registration
Altis 1.8 cvti is a basic automatic altis with a 7 speed cvti gearbox and an all new 1.8 engine. costs around 23 if i am not wrong(with registeration)
The grande is the fully loaded one with added toys like paddle shifters, leather, sunroof, a different sound system etc. costs around 25 with registeration.
In our county, since resale is of concern to many, resale wise
Altis 16>altis grande>altis 1.8