A 1939 Lincoln Model K V12 convertible (with a Brunn body) was acquired by the government for the use of Franklin D. Roosevelt. As a result of its convertible top (to allow the president to appear in crowds without exiting the vehicle), the Lincoln adapted the name "Sunshine Special". In 1942, as a response to the beginning of World War II, the Sunshine Special adapted armor plating and bullet-proof glass; the retractable roof remained in use. Following the result of the security upgrades, the Sunshine Special expanded to 9,300 pounds. After traveling across the United States for the Roosevelt and Truman administrations, the Sunshine Special was retired in 1948. Today, the Sunshine Special is on display at the Henry Ford Museum in Dearborn, Michigan.