Electric Cars and Other Gadgets

Italian automaker Pagani was to begin selling its $1 million, 700 horsepower Huayra supercar in the U.S. later this year but federal safety regulators have said "Not so fast."

Pagani had applied for an exemption from federal auto safety rules requiring child-safe "advanced" airbags, arguing that complying with the rule would have caused "substantial economic hardship," according to documents from the National Highway Traffic Safety Administration.

NHTSA denied the request, essentially blocking the car from sale in the U.S., because Pagani failed to show that installing the airbags on the twin-turbocharged 12-cylinder carbon-titanium car would cause the company undue financial strain. Also, the Italian carmaker didn't show that serious efforts had been made to comply, the agency said.

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