| Abbreviation | Definition |
|---|---|
| RAGE | Racers Audiophiles Gentlemen and Enthusiasts |
| RARA | Reno Air Racing Association |
| RARS | Robot Auto Racing Simulation |
| RARS | Robot Auto Racing Simulator |
| RAS | Racing Academy Sachsenring |
| RASR | Racers Against Street Racing |
| RATA | Race Across the Alps |
| RATT | Race Against The Time |
| RB | Race Bred |
| RB | Race Breed |
| RB | Racing Bred |
| RB | Racing Breed |
| RBR | Red Bull Racing |
| RBR | Ricky Benton Racing |
| RC | Race Car |
| RC | Racing Club |
| RC | Racing Coupe |
| RCD | Race Car Dynamics |
| RCI | Racing Commissioners International |
| RCL | Racing Club de Lens |