 The British Film Institute houses an early film, made in 1913, in which a miniature car (a "baby Cadillac") commissioned by Queen Alexandra for Crown Prince Olav tows a procession of Londoners through the streets of the capital, before being delivered to a pair of "royal testers" of roughly Olav's age.The car is a battery-powered, one-third size replica on a four-foot wheelbase, and is on permanent loan to the Norsk Teknisk Museum in Oslo.As Crown Prince, Olav had received extensive military training and had participated in most major Norwegian military exercises.