Hyundai Grand i10 is a very good car, the Sportz trim is feature rich and comes with lots of features. The mileage for the diesel version is around 24kmpl and for petrol it is around 22kmpl. Go for it, it is actually a good vehicle.
That's great if you are planning for a new car. It might interest you to know that Hyundai is planning to launch the facelift version of the Grand i10 sometime this year around August/September. The Grand i10 facelift is also likely to get AMT (Automated Manual Transmission). So if you are planning in 1-2 months, we suggest you to wait for its new facelift version and other new upcoming cars.