A GM Cobalt Vehicle Moves Along The Assembly Line

A GM Cobalt Vehicle Moves Along The Assembly Line

Luke Sharrett/Bloomberg

A General Motors Co. Cobalt vehicle moves along the assembly line at the company's Sao Caetano do Sul manufacturing facility in Sao Caetano, Brazil,As the number of registered cars in the U.S. rose to 248 million, National Highway Traffic Safety Administration’s Office of Defect Investigations shrunk to 51 employees, from 64 in 2002.