Manufacturing problems

I bought XUV 300 W8O, two months ago but after 10 to 15 days the whole body started making sounds, I gave for servicing but the result was horrible the sounds increases double. After complaining, the dealer told that the car has a manufacturing problem and the company has been researching on that. Again they called me for another servicing but that also didn't worked, the problem rises only. A permanent solution that they will give... I hope soo, if the car has such a major problem, then the dealer should stop selling the car.