AGE: 70
OCCUPATION: Chairman of Tata Motors
NUMBER OF TIME COVERS: 0
PREVIOUS APPEARANCES ON THE TIME 100: 0
PRO: His Tata Nano is the world's cheapest car: a 50-mpg, two-cylinder, four-door runabout available for about $2,500. This opens the car market to a poorer, more scooter-driven demographic.
CON: Despite the fuel efficiency and price, the Nano is the stuff of nightmares for environmentalists and urban planners: imagine, more cars in already congested third-world cities!