PORSCHE RACING HISTORYJo Siffert (CH)
1967 : Daytona 24 Hours - 1st in class : Sebring 12 Hours - 2nd in class : Monza 1000 km - 2nd in class : Spa 1000 km - 2nd overall, 1st in class : Targa Florio - 2nd in class : Le Mans 24 Hours - 1st in class : Brands Hatch 6 Hours - 3rd overall
5 February 1967 - Daytona 24 Hours - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 52 | Porsche 910 | 910-003 | P2.0 | Hans Herrmann (D)/Jo Siffert (CH) | Porsche of Stuttgart (D) | 4th | 1st | 17th | 618 laps |
1 April 1967 - Sebring 12 Hours - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 37 | Porsche 910 | 910-004 | P2.0 | Jo Siffert (CH)/Hans Herrmann (D) | Porsche Auto (D) | 4th | 2nd | 10th | 223 laps |
25 April 1967 - Monza 1000 km - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 16 | Porsche 910 | 910-009 | P2.0 | Hans Herrmann (D)/Jo Siffert (CH) | Porsche System Engineering Ltd. (D) | 5th | 2nd | 8th | 95 laps |
1 May 1967 - Spa 1000 km - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 21 | Porsche 910 | 910-007 | P2.0 | Jo Siffert (CH)/Hans Herrmann (D) | Porsche System Engineering (D) | 2nd | 1st | 8th | 70 laps |
14 May 1967 - Targa Florio - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 218 | Porsche 910/8 | 910-012 | P+2.0 | Jo Siffert (CH)/Hans Herrmann (D) | Porsche System Engineering (D) | 6th | 2nd | 9 laps |
28 May 1967 - Nürburgring 1000 km - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 910/8 | 910-028 | P+2.0 | Jo Siffert (CH)/Hans Herrmann (D) | Porsche System Engineering (D) | DNF | 3rd | 11 laps - Valve |
11 June 1967 - Le Mans 24 Hours - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 41 | Porsche 907 LH | 907-004 | P2.0 | Jo Siffert (CH)/Hans Herrmann (D) | Porsche System Enginnering (D) | 5th | 1st | 21st | 358 laps |
30 July 1967 - Brands Hatch 6 Hours - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 910 2.2 | 910-028 | P+2.0 | Jo Siffert (CH)/Bruce McLaren (NZ) | Porsche System Engineering Ltd. (D) | 3rd | 3rd | 8th | 209 laps |