PORSCHE RACING HISTORYAlan Johnson (USA)
1968 : Sebring 12 Hours - 1st in class
23 March 1968 - Sebring 12 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 911 S | GT2.0 | Robert Kirby (USA)/Alan Johnson (USA) | Don Burns V.W. (USA) | 7th | 1st | 37th | 208 laps |