Tin Lizzie 
noun North American informal, dated
A car, especially a very early Ford.Tin Can Tourists were RVers who brave the dust and mud to drive their tin Lizzies across the U.S. before transcontinental roads were paved, camping by the side of the road, heating tin cans of food on a gasoline stove and bathing in cold water.
Origin
Early 20th century: Lizzie, a pet form of the given name Elizabeth.