The world's cheapest car is being readied for sale in the U.S

The world's cheapest car is being readied for sale in the U.S., but by the time India's Tata Nano is retrofitted to meet emissions and safety standards, it won't be that cheap.

Tata Technologies Ltd., the global engineering arm of the Tata group conglomerate, brought the tiny car to Detroit as a publicity stunt for the engineering group.

Tata officials, while maintaining that they couldn't speak for Tata Motors, maker of the $2,500 Nano, said they were involved with the Nano from concept until it launched last July in Mumbai.

They wouldn't say when the Nano might arrive in the U.S. or how much it might cost here, although Ratan Tata, chairman of the group of Tata companies, has said it should be ready for U.S. distribution in about three years.

Tata Motors already has made a European version of the four-seat car that will cost about $8,000 when it debuts in 2011, and a Tata Technologies official said privately that the U.S. version is expected to have a comparable price. The official did not want to be identified because the price has not been made public.

Warren Harris, Tata Technologies president, would only say that the price would be more than the roughly $2,500 charged in India.