Car manufacturer R
| Name | Number of models |
|---|---|
| Radial Trail King | 6 |
| Rage'n | 1 |
| R And R | 2 |
| Ranger | 1 |
| Range Rover | 1 |
| Ranger Trail | 12 |
| Raybestos | 1 |
| Rc | 1 |
| Reb Express | 2 |
| Redneck | 1 |
| Red River | 1 |
| Regency | 8 |
| Reinke | 6 |
| Reitnouer | 2 |
| Reliance | 2 |
| Renault | 18 |
| Renegade Kibbi | 1 |
| Revcon | 11 |
| Rexhall | 10 |
| Rexhaul | 1 |
| Rialta | 1 |
| Ricon | 40 |
| Riken | 1 |
| Road King | 9 |
| Roadmaster | 4 |
| Roadrunner 300cc | 1 |
| Road Systems | 2 |
| Roadtrek | 14 |
| Rockwood | 10 |
| Rolling M | 3 |
| Rolls Rite | 9 |
| Rolls Royce | 3 |
| Rolls-royce | 32 |
| Roush | 7 |
| Royal | 1 |
| Rv | 1 |
| Rv - Fifth Wheels | 1 |
| R-vision | 23 |