one thing please go for 1.3 which is a beast, i have 06 1.3 model, 2nzfe engine, it goes to 160 without problem and i easily smoke city etc. on highway. At the same time this car has super awesome milleage and durability.
i have driven it on dirt, mud, everywhere in rain, moon soon, floods and never ever it stopped any where.
Just one more thing, if your budget is near 15 lakh you can also think of aqua which has more features and power than 1.3 vitz.
overall, vitz is a soul mate car made for long last...