New passo from 2010 and onwards has cvt transmission, which do not have any fix gears ratio
It can go to any gear ratio anytime as required by engine .
Company has programmed it to shift between 5 or 4 ratios (i am not sure passo has 5 or 4 gear ratio)
This can be changed by re-programing
Just for an example , honda fit or jazz which is same category like vits and passo
Has 7 gear ratios in its cvt
And cars like accord and upper from them has 12 gear ratios in their cvt's