| Ian Callum Design Aston Martin Vanquish 25 2020 | Aston-Martin, coupes, custom-builds, grand-tourers |
| IC Bus Type C 2001-current (School Bus) | other-vehicles |
| iCar 03 2023-current | Chery, crossovers-suvs, electric-vehicles |
| Icona Vulcano Titanium 2016-2016 | Icona |
| Iconic Autobody 386/387 Speedster 2018-current | custom-builds, Porsche, restomod |
| IFR Aspid 2008 | |
| IKA-Renault Torino 1966-1981 | coupes, Renault, sedans |
| Illyrian Pure Sport 2024-current | coupes, sports-cars |
| IM L7 2022-present | electric-vehicles, IM-Motors, sedans |
| IM LS6 2023-current | crossovers-suvs, electric-vehicles, IM-Motors |
| IM LS7 2022-current | crossovers-suvs, electric-vehicles, IM-Motors |
| Imperia GP | Imperial |
| Imperial LeBaron (Green Hornet) 1966-1966 | Imperial |
| Ineos Fusilier 2024 | concepts-prototypes, crossovers-suvs, electric-vehicles, hybrid-vehicles, Ineos |
| Ineos Grenadier 2022-current | crossovers-suvs, Ineos, Offroad, pickup-trucks |
| Ineos Grenadier aftermarket variants 2023-current | crossovers-suvs, custom-builds, Ineos, Offroad, pickup-trucks |
| Inferno Inferno 2020-2020 | Inferno |