Automobilhersteller  I

Iden GB 1904 - 1908
Iena I 1922 - 1925
IFA DDR 1946 - 1965
IHC USA 1911
IKA ARG
Ikenga USA ca. 1970īs
Ilberg SWE 1951
Ilford GB 1902 - 1903
Illinois USA 1910 - 1912
Immish GB 1894 - 1897
Imp USA 1949 - 1959
Imperia BEL 1906 - 1948
Imperial GB 1900 - 1905
Imperial USA 1903 - 1905
Imperial USA 1903 - 1905
Imperial GB 1904 - 1905
Imperial USA 1907 - 1908
Imperial USA 1909 - 1915
Imperial GB 1914
Imperial USA 1926 - 1992
IMV SLOV 1972
Independent USA 1920 - 1927
Indian USA 1928 - 1929
Indiana USA 1921
Infiniti JAP 1989 - heute
Ingersoll-Rand USA 1921
Inland USA 1920
Innes USA 1921
Innocenti IT 1961
Innotech CZ 1993 - heute
Intermeccanica I 1959 - 1975
International GB 1900 - 1904
International USA 1907 - 1911; 1961 - 1980
Inter-State USA 1908 - 1918
Invicta GB 1901 - 1905
Invicta GB 1914
Invicta GB 1925 - 1937; 1947 - 1949
Iota GB 1951
Iowa USA 1908 - 1909
Iris GB 1906 - 1925
Irmscher DDR
Iroquois USA 1905 - 1908
Isdera D 1982 - heute
Iso I 1953 - 1975
Isotta Franschini I 1899 - 1946; 1996 - 2000
Isuzu JAP 1939 - heute
Itala I 1903 - 1934
Ital Design I
Italia I 1907 - 1908
Ivel GB 1899 - 1906
Ivernia GB 1920
Ivor GB 1912 - 1916
Izhmash RUS 1966 - heute