PORSCHE RACING HISTORYCharles Mendez (USA)
1978 : Sebring 12 Hours - 1st overall
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA)/Charles Mendez (USA)/Joe Castellano (I) | Morrison's Inc. | 36th | 10th | 61st | 459 laps - DNF |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 | 930 890 0037 | GTX | Brian Redman (GB)/Charles Mendez (USA)/Bob Garretson (USA) | Dick Barbour Performance (USA) | 1st | 1st | 5th | 240 laps |
2 April 1978 - Talladega 6 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 935 | 930 770 0905 | GTX | Gianpiero Moretti (I)/Charles Mendez (USA) | Electrodyne Inc. (I) | 32nd | 12th | 4th | 52 laps - Accident Damage |
4 July 1978 - Daytona 250 Miles Paul Revere - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA)/Charles Mendez (USA) | Morrison's Inc. | 40th | 14th | 24th | 36 laps - DNF |