| Gold Cirrus 1991 | |
| Gordini T24S 1953 | Gordini, open-top-cars, racing-vehicles, sportscar-racing, WSC-racing |
| Gordon Keeble GK1 1964-1967 | Chevrolet, coupes, Gordon-Keeble, grand-tourers |
| Gordon Murray Le Mans GTR 2026-current | coupes, Gordon-Murray, supercars |
| Gordon Murray S1 LM 2026-current | coupes, Gordon-Murray, supercars |
| Gordon Murray T.33 2024-current | coupes, Gordon-Murray, open-top-cars, supercars |
| Gordon Murray T.50S Niki Lauda 2020-current | coupes, Gordon-Murray, racing-vehicles |
| Gotham Garage Concept | concepts-prototypes |
| Graf & Stift Bois de Boulogne double phaeton 1910 | Graf, open-top-cars |
| Grand Touring Garage Ford Mustang Trans-Cammer 1970/2009 | coupes, custom-builds, Ford, muscle-cars |
| Grassi 044S 2023-current | custom-builds, hatchbacks, Lancia, sports-cars |
| Great Wall Pao 2019-present | Great-Wall |
| GReddy Fugu Z 1973/2015 | coupes, custom-builds, Nissan |
| Greenwood Corvettes (C3 Racing Spec) 1970-1976 | Chevrolet, fm-roster, GT-racing, racing-vehicles, silhouette-racing |
| Grinnall Scorpion III | |
| Grumman LLV 1987-1994 | Grumman, other-vehicles |
| GSM Flamingo 1962 | open-top-cars, other-makes |
| GTM Coupe 1967-2001 | coupes, other-makes |
| GTM Libra 1998-2000s | coupes, other-makes |
| GTM Rossa 1987-1990s | coupes, kit-car, other-makes |
| Guldstrand GS90 | |
| Gumpert Apollo 2005-2012 | coupes, fh1-roster, fmx360-roster, Gumpert, supercars |
| Gumpert Nathalie 2018-current | concepts-prototypes, Gumpert, sports-cars |
| Gumpert Tornante Concept 2011 | concepts-prototypes, Gumpert |
| Gunsel B9 2022-current | electric-vehicles, Gunsel, hatchbacks |
| Gurgel Supermini 1992-1994 | Gurgel, hatchbacks, other-makes |