constructeurs automobiles
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Micro-vett | Profession | 6 | 0.7 |
| Microcar | Profession | 13 | 9.1 |
| Midual | Profession | 5 | 4.5 |
| Miele | Profession | 32 | 54.7 |
| Miesse | Profession | 6 | 0.1 |
| Million Guiet & Cie | Profession | 4 | 0.0 |
| Minarelli | Profession | 16 | 13.6 |
| Minerva | Profession | 21 | 19.1 |
| Mini Comtesse | Organisation | 4 | 6.2 |
| Mitsubishi | Profession | 61 | 116.8 |
| Mitsubishi Fuso | Profession | 23 | 1.4 |
| Mitsuoka | Profession | 22 | 3.9 |
| Mobius Motors | Profession | 7 | 1.1 |
| Modec | Profession | 7 | 0.0 |
| Mol Trucks | Profession | 5 | 1.0 |
| Monet-goyon | Profession | 6 | 15.6 |
| Monica | Profession | 4 | 14.6 |
| Montesa | Profession | 15 | 2.4 |
| Monteverdi | Profession | 17 | 16.2 |
| Morbidelli | Profession | 17 | 2.5 |
| Morgan | Profession | 26 | 41.6 |
| Morgan Monotrace | Profession | 6 | 1.0 |
| Morris | Profession | 27 | 16.3 |
| Mors | Profession | 12 | 11.7 |
| Moskvitch | Profession | 39 | 11.6 |
| Mosler Automotive | Profession | 12 | 4.8 |
| Moteurs Buchet | Profession | 7 | 1.2 |
| Motherson Sumi Systems | Organisation | 4 | 2.4 |
| Moto Guzzi | Profession | 30 | 37.1 |
| Moto Morini | Profession | 15 | 11.4 |
| Motobi | Profession | 12 | 2.8 |
| Motobloc | Profession | 9 | 2.4 |
| Motocyclettes D.f.r. | Profession | 4 | 1.8 |
| Motorrad- Und Zweiradwerk | Profession | 19 | 11.2 |
| Motorwagenfabrik Excelsior | Profession | 4 | 0.1 |
| Mowag | Profession | 13 | 10.2 |
| Mpm Motors | Organisation | 3 | 16.5 |
| Mv Agusta | Profession | 29 | 44.0 |
| Mzkt | Profession | 16 | 0.1 |
| Métisse Motorcycles | Profession | 5 | 0.8 |
| Münch | Profession | 5 | 19.7 |
| Nacional Pescara | Profession | 8 | 0.4 |
| Nagant | Profession | 16 | 7.2 |
| Nanjing Automobile | Profession | 20 | 10.3 |
| Napier & Son | Profession | 11 | 3.4 |
| Nash Motors | Profession | 24 | 9.6 |
| Nasr | Profession | 15 | 2.2 |
| National Motor Vehicle Company | Profession | 7 | 0.3 |
| Naveco | Profession | 6 | 2.4 |
| Navistar | Profession | 25 | 8.7 |