The search is on for the oldest Porsches in the U.S.

To celebrate the 60th anniversary of its arrival in America, Porsche has launched a search to find the oldest Porsches in the nation. In addition to searching for the great-granddaddy of them all, Porsche wants to identify the oldest Porsches in 12 model categories, from the 356 to the newest generation of Boxsters and Caymans.