General Motors Corp. recently delivered to the U.S. Secret Service a brand new presidential limousine, replacing the 2006 model Cadillac DTS presidential limousine that President George W. Bush has used.

The new limousine, dubbed the 2009 Cadillac Presidential Limousine, makes its debut on Inauguration Day. It's the first presidential limousine not to carry a specific model name, said GM spokesman David Caldwell.

CNN has...