| COMIOT | TRICICLO | FRANCIA | PARIS - SEINE | 1899 |
| COMMANDER | AUTOCICLO | REINO UNIDO | BROMLEY - LONDON COUNTY | 1952 |
| COMMANDO | MOTOR | USA | MINNEAPOLIS - MINNESOTA | 1950,s |
| COMODO | MOTOR | SUIZA | - | 1950 |
| CONCORD | CICLOMOTOR | USA | KALAMAZOO - MICHIGAN | 1978 |
| CONDAL | MOTOCARRO | ESPAÑA | BARCELONA - BARCELONA | 1952 |
| CONDON | TRICICLO | USA | HARTFORD - CONNECTICUT | 1905,s |
| CONDOR (Braunschweig) | ESCÚTER | ALEMANIA RFA | BRAUNSCHWEIG - NIEDERSACHSEN | 1953 |
| CONDOR (Courfaivre) | MOTOCICLETA | SUIZA | COURFAIVRE - JURA | 1893 - 1901 |
| CONDOR (Coventry) | MOTOR | REINO UNIDO | COVENTRY - WARWICKSHIRE | 1907 |
| CONDOR (Deanshanger) | MOTOCICLETA | REINO UNIDO | DEANSHANGER - NORTHAMPTONSHIRE | 1899 - 1902 |
| CONDOR (Frankfurt am Main) | CICLOMOTOR | ALEMANIA | FRANKFURT AM MAIN - HESSEN | 1966 |
| CONDOR (Madrid) | MOTOCICLETA | ESPAÑA | MADRID - MADRID | 1959 |
| CONDOR (Taoyuan) | MOTOR | TAIWAN | TAOYUAN - TAOYUAN | 1997 |
| CONFEDERATE | MOTOCICLETA | USA | BATON ROUGE - BIRMINGHAM (AL) - LOUISIANA - ALABAMA | 1991-1994 |
| CONFORT | CICLOMOTOR | ITALIA | MILANO - MILANO | 1948 |
| CONNAUGHT | MOTOCICLETA | REINO UNIDO | BIRMINGHAM - WARWICKSHIRE | 1910 |
| CONSTANTIN | BICIMOTOR | FRANCIA | SAINT-CHINIAN - HÉRAULT | 1900 |
| CONSUL | MOTOCICLETA | REINO UNIDO | NORWICH - NORFOLK | 1922 |
| CONTAL | TRICICLO | FRANCIA | PARIS - SEINE | 1905 |