O
- O 302 - (Vehicle model)
- O type - (Vehicle model)
- O&K ( Orenstein & Koppel) - (Vehicle make)
- Ocean Liner - (Vehicle type)
- Ocean Terminal - (Vehicle type)
- Octavia - (Vehicle model)
- Octopus - (Vehicle model)
- Ogle - (Vehicle make)
- Oil Cabinet - (Vehicle model)
- Old Bill - (Vehicle model)
- Olding - (Vehicle model)
- Oldsmobile -
- Oldsmobile - (Vehicle make)
- Olympia - (Vehicle model)
- Opel - (Vehicle make)
- Ordnance QF 18 pdr - (Vehicle model)
- OSI - (Vehicle make)
- OSI 20 M TS - (Vehicle model)
- Otter - (Vehicle model)
- Outside Filming - (Vehicle type)
- Overland - (Vehicle model)
- Oxford - (Vehicle model)