Worst car ever and service station in ahmedabad

Showroom people will always convince you because they want to sell the cars, it's worst car and worst service centre in ahmedabad i think so. I am having horrible experiences during riding even at service station. Totally unprofessional staff they don't even know how to place the new bumper properly. They always give your car late as compared to thay commit. Worst material and built in quality. Can having many issues like fuse box is not working sometimes so car couldn't start, when I close and open the front window mirror there is some awkward notice is coming. Main thing is fuel tank when ever I go for fuel it always overflow from the tank .. may be airation problem there are plenty reasons not to buy any car from Datsun. Cheap but that doesn't mean good. people told me don't buy this car I am regretting now. Planning to buy new swift or amaze on this december. Better to spend few more money rather then suffering each and everyday.