1) 97% of its parts are built in India, thereby utilizing the cheap labor available in the country.
2) The car weighs 580 kg. Lesser weight means an engine with lesser capacity can be employed to power the car. The cost is kept down in this way.
3) The generator used in the car has an output of 35 amp and weighs 5 kg. Bosch's standard generator would weigh 6 kg and output 40 amp.
4) The starter motor on this car is borrowed from a motorcycle.
5) Bosch removed 700 out of the 1000 functions in this car's ECM. Even the various sensors that give feedback to the ECM from the engine are designed lighter to reduce weight.
6) The instrument cluster on the Nano weighs 400 grams which otherwise would weigh close to 1 kg.
7) Lower maximum speed meant the powertrain and suspension could be kept simple which would again translate into lower manufacturing costs.
8) The glass on the rear windows are fixed and cannot be rolled down.
9) The Nano has only one windshield wiper!
10) The basic version of the car has its wheels fastened to the hub using 3 lugs instead of 4 or 5.
11) The front seats on the Nano are fixed and cannot be moved.