I was very confident to buy nano but my relative use to make jokes on me but thanks to tata that they have rebuild my confidence initially the 1st day some sensor problem occurred but they have rectified it last week I went to mahableshwar from Mumbai 300 km with my family the weight we carry in the car was 550 kg that means all person were fat and we went at the speed of 90-100 km per hour it was my fantastic trip the car was amazing in all aspect.