Nice Car But Unsatisfied With The After Sale Service

I have been using my Hyundai I20 Asta (optional), petrol for four years now, and I am overall dissatisfied with the following things.  1. Fuel Efficiency of my car  2. I have been suffering a lot in finding a proper replacement for the sunroof glass which was broken earlier, I had given my car in the garage, but they could not repair it properly and this sunroof has been a headache to me ever since. I would strongly recommend not to buy the optional model for either Petrol or diesel variants.  3. After sale service is bad for Hyundai, when ever you got to them with any issue, the first thing they will speak about is money, before even diagnosing the problem which has occurred.  4. Unlike Maruti Suzuki, Hyundai parts are very costly and if you try to fix your car from outside they will fix one issue and create another issue for you. Overall if I consider my car's performance the three stars which I have given is for its performance only. For other things, I'm quite disappointed as an owner.