PORSCHE RACING HISTORYJohnny Dumfries (GB)
b. 26 April 1958 (Argyll and Bute, Scotland) - d. 22 March 2021
Wikipedia
John Colum Crichton-Stuart, 7th Marquess of Bute, styled Earl of Dumfries before 1993
1984 1985 19871984
2 September 1984 - Spa 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 16 | Porsche 956 | 956-007 | C1 | Johnny Dumfries (GB)/Richard Lloyd (GB) | Richard Lloyd Racing | DNF | 18th | 6 laps - Oil Pressure |
2 December 1984 - Sandown Park 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 956 | 956-007 | C1 | Johnny Dumfries (GB)/Jack Brabham (AUS)/Richard Lloyd (GB) | GTi Engineering | NC | 14th | 108 laps |