PORSCHE RACING HISTORYDon Wester (USA)
1964 : Daytona 2000 Kilometres - 2nd in class
16 February 1964 - Daytona 2000 Kilometres - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 356 B Carrera 2000 GT/GS | 356-122 991 | GT2.0 | Jo Bonnier (S)/Don Wester (USA)/Edgar Barth (DDR) | Porsche System Engineering (D) | 8th | 2nd | 15th | 303 laps |
21 March 1964 - Sebring 12 Hours - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 42 | Porsche 356 B Carrera 2000 GT/GS | 356-122 991 | GT2.0 | Don Wester (USA)/Bruce Jennings (USA) | Porsche System Engineering (D) | 19th | 35th |