M. L. Speer (USA)
1978
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
70 | Porsche 911 S | GTU | M. L. Speer (USA)/Windle Turley (USA) | Race Car Ent. | 25th | 10th | 56th | 168 laps |