I have purchased NANO car two year back. Since then I am facing average problem.It is not more than 11 km per hour.Thus, it is not proved economic.At service station, many repairs & improvement had been made but in futile.
I had thought that it may prove as fuel efficient and I had blocked my money and in recurring way I am expending money in petrol as its average is not more than 11 km.company should give guarantee of its average as minimum.