Note: Our liana was swapped with a M18A and I mostly drove that car after the swap. So compared to the m13, the m18 is very fuel thirsty.
Anyways, this is how I would rank the cars above
Sunny > City > XLI > Optra >Liana (1.8 swapped) however, the 1.3 liana might come in the mid range on this list.
My suggestion is to try these cars, see what suits you. But personally, I would go for a sunny 1.3 EX-Saloon.