| Make | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Make | # | Date | Links | Pictures | Forums | History |
| Gar (France) | 1 | 1922 - 1931 | --> 3 |
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| Garbaty (Germany) | 1 | 1924 - 1927 | --> 3 |
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| Garford (United States of America) | 1907 - 1913 | |||||
| Gaz (Russia) | 47 | 1932 - | --> 33 |
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| Geely (China) | 4 | 1998 - | --> 4 |
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| General Motors Corporation Group (United States of America) | 1908 - | --> 2 |
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| Geo (United States of America) | 14 | 1988 - | --> 12 |
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| Georges Irat (France) | 10 | 1921 - 1960 | --> 18 |
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| Georges Richard (France) | 4 | - | --> 9 | |||
| Georges Roy (France) | 1 | 1906 - 1929 | --> 3 |
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| Ghia (Italy) | 3 | 1921 - | --> 13 |
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| Gigliato (Japan) | 1 | 1987 - | --> 4 |
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| Gillet (Belgium) | 4 | 1994 - | --> 12 | 2 msg |
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| Ginetta (United Kingdom) | 16 | 1957 - | --> 15 |
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| Giugiaro (Italy) | 1 | - | --> 5 | |||
| Gladiator (France) | 3 | 1896 - 1920 | --> 8 |
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| Glas Isaria (Germany) | 44 | 1955 - 1966 | --> 29 |
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| GMC (United States of America) | 104 | 1925 - | --> 6 | --> 68 | 1 msg |
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| Gobron-Brillie (France) | 1 | 1898 - 1930 | --> 4 |
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| Goliath (Germany) | 7 | 1931 - 1963 | --> 6 |
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| Gordini (France) | 11 | 1951 - 1957 | --> 34 | 5 msg |
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| Gräf & Stift (Austria) | 1 | 1895 - 1908 | --> 3 |
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| Graham-Paige (United States of America) | 3 | 1927 - 1941 | --> 8 |
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| Grandin (France) | 6 | 1984 - | --> 3 |
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| Great Wall Motor (China) | 10 | - | --> 6 | |||
| Gregoire (Asnière) (France) | 1 | 1945 - 1962 | --> 5 |
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| Gregoire (Poissy) (France) | 2 | 1903 - 1924 | --> 18 |
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| Guanzhou (China) | 2 | 1984 - 1998 | --> 4 |
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| Gumpert (Germany) | 1 | 2005 - | --> 2 | |||
| Guyot Spéciale (France) | 1 | 1925 - 1931 | --> 4 |
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