The world’s cheapest car, the Nano, rolls out in India this week. Manufacturer Tata Motors says it will change the way Indians drive, for the inauguration places the personal car within the reach of people who once could only dream of owning one. Indeed, the Nano has been marketed as an ‘aspiration’—the right of every Indian to a car. No quibble here. There is no question an affordable car is better than an expensive one; or that a small car, being more fuel efficient, is better than a big one.