tata nano car

I want to buy a tata nano car so can u plz give me details of it ie., its features, what are present in it like air bags, A.C, mp3 player etc if not can we attach them later or it is not possible to fix any extra items.I also want to know more how many months are there for the car to be on road.PLZ PLZ PLZ PLZ. give me the details I listed upside.