Flivver
A flivver is an American slang term used during the early part of the 20th century to refer to any small car that gave a rough ride, esp. one that is small, inexpensive, and old. A contemporary term was a "Tin Lizzy" (referring to a Ford Model T).
The term started to go out of style by the late 1930s or early 1940s, replaced by the use of jalopy in the writings of John Steinbeck (In Dubious Battle, 1936) and especially by Jack Kerouac in On the Road (1957).