Once you get used to the petrol car its really fun. Just stay in a lower gear than normal and rev the smooth engine and i enjoy the way it pulls cleanly. Hill climbing has not been a problem if i stay in lower gears. Mileage is in fact better if you accelerate it the lower gears and I guess it the way the car is tuned. Most people shift gears too early and in case of i20 petrol will get disappointed. So remember stay a gear lower than usual and downshift the correct manner when acceleration is needed and it will be fun.