Comparing the budget you are looking at, which i figured out from the models u have mention 1st, the best two options will be a AE100, a civic EK3 or if it's over your budget,
HONDA CITY 1998-1999 which comes 300- and 301- models is also a very economical car with less repairs.
I have driven 3-4 of them and all averages 12-13 per lt in colombo and touch 16-17 per lt outstation and superb on pick up too.(better than a ek3...)
But car is slightly less comfortable than a AE100 or a EK3...