This is in regards to your query posted on the website CarDekho.com, we would like to inform you that Fiat Grande Punto 1.2 gives mileage of 12.0 kmpl in city conditions and 16.2 kmpl on highways. As of now service & maintenance of Fiat cars is done at Tata outlets. Parts availability can be issue if any major problem occurs and parts cost slightly more as compared to Maruti & Hyundai hatchbacks.
Sir, if all the engineers are saying that there is a problem in Punto than they might be right, then you should test another Punto in same variant for that problem. If you feel the same problem in the other car also than the engineers are right. But if you won't found the sane in test vehicle, then there Might be a problem with your tyre or wheel or it might be a problem in suspension system. If the problem is with tyre, then it is a regular problem. But you are saying that the problem appears when it just jumps over a bump. By this, it is sounding as a problem with suspension system.