Kia Sonet GT line 1.0 owning experience(Stay away from this car as much as you can)

kia people never let you have a bad experience in sales, they showed us all courtesy and good behaviour. just after 20 days of buying the car stopped in the middle of the road for few minutes and when contacted the service people told that you have to bring the car to the service centre which is 400km from my home. This happened multiple times with me and when i took my car to them they said that they changed some part and the problem won't repeat. But from that time i knew something is fishy , this car gives mileage of 5-8km/l in city and traffic and on highway max it gives 11-12 km/l which is way less then they claim. So we complained many times to the showroom people, they said that after the 3rd service at 10,000 kms your car will give better mileage. We believed them and ran the vehicle. This vehicles engine is absolutely underpowered and I am from a hilly region so in normal steeps you have to bring it down to 1st gear other wise it won't climb. Coming to the Service , company claims that it'll cost around 6,000 on the third service and they text you before service also that the estimated service is 6000 but when we got the bill they added unnecessary things worth thousands and we paid 10k for the service. Now overall we have ran this vehicle over 23,000 kms and we have done the 4th service and it costed more than 11,000. we have contacted the kia people for exchange this model with diesel model and they are asking 8 lakhs . I swear that from the day we have bought this vehicle to our home our life have became hell. Don't do that mistake and stay away from these korean petrol engines it is not at all practical!!!