This is one of the worst cars by tata. Tata is a decent automobile manufacturer but when it comes to Nano, they lost so much of their reputation.
They say its a compact car but its so compact that tall people cannot sit properly. There is not enough room to keep your legs. Most of the customers who bought Nano feel like thet have failed in making decision.
It gives a mileage around 15-18 kmpl or even less in some cases. Not at all comfortable for the passengers. It seems like it uses a kind of Auto Rickshaw engine to be honest because it sounds like one.
For some people the seems attractive but most of them hate the car just because of its body design.
Overall its a bad car from Tata and it is best that they stop producing these and find a new substitute.