constructeurs automobiles
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Necchi | Profession | 5 | 4.8 |
| Nedcar | Profession | 15 | 2.8 |
| Neoplan | Profession | 30 | 10.5 |
| Ner-a-car | Profession | 6 | 1.1 |
| Neta Automobile | Profession | 2 | 0.1 |
| New Map | Profession | 7 | 3.3 |
| Nimbus | Profession | 12 | 4.0 |
| Nio | Profession | 30 | 17.0 |
| Nissan | Profession | 90 | 279.0 |
| Nissan Motor Ibérica | Profession | 9 | 0.0 |
| Noble | Profession | 20 | 20.2 |
| Nogebus | Profession | 10 | 0.0 |
| Nordex S.a. | Profession | 3 | 0.6 |
| Norlow | Profession | 2 | 1.5 |
| Norma Auto Concept | Profession | 6 | 0.5 |
| Norton Manx | Profession | 8 | 7.4 |
| Norton Motorcycles | Profession | 21 | 18.6 |
| Novy | Profession | 2 | 2.0 |
| Noé Boyer & Cie | Profession | 3 | 0.0 |
| Nsu | Profession | 38 | 45.6 |
| Nuffield Organization | Profession | 13 | 0.2 |
| Nufmobil | Profession | 2 | 0.8 |
| Nyayo | Profession | 9 | 0.4 |
| Oakland | Profession | 16 | 2.9 |
| Officine Meccaniche | Profession | 20 | 9.6 |
| Officine Padane | Profession | 5 | 0.6 |
| Officine Stampaggi Industriali | Profession | 7 | 0.7 |
| Oldsmobile | Profession | 36 | 46.1 |
| Oltcit | Profession | 18 | 7.1 |
| Omega-six | Profession | 5 | 0.4 |
| Onoto | Profession | 2 | 0.5 |
| Opel | Profession | 88 | 364.0 |
| Open Automotive Alliance | Organisation | 7 | 0.6 |
| Optorg | Organisation | 2 | 12.5 |
| Origan | Profession | 2 | 0.6 |
| Osca | Profession | 16 | 4.8 |
| Osella | Profession | 21 | 7.1 |
| Ossa | Profession | 14 | 6.0 |
| Otokar | Profession | 19 | 10.5 |
| Otosan | Profession | 13 | 2.6 |
| Otus | Profession | 1 | 1.2 |
| Oural | Profession | 19 | 0.0 |
| Overland Automobile | Profession | 12 | 1.9 |
| Oyak-renault | Profession | 10 | 6.4 |
| P. Astresse | Profession | 1 | 0.0 |
| P. Bruneau & Cie. | Profession | 3 | 0.0 |
| P. Morisse et Cie | Profession | 4 | 1.3 |
| P.s. | Profession | 1 | 0.2 |
| Paccar | Profession | 27 | 30.1 |
| Pagani | Profession | 40 | 89.5 |