Everything okay except poor mileage and low ground clearance

I bought Hyundai elite i20 this year in the month of march and since the I am driving this car and crossed d odometer reading of 8000kms and found this car to be very comfortable in riding and feels secured at high speed on highway even after crossing 100kmph!.The music system, ac, and large legrooms are a boon ang hearwarming from all fronts except poor mileage...and low ground clearance!..Hope Hyundai will work on it!...Thanks Hyundai for d premium hatchback!..