Fastest laps Statistics
| Fastest laps | Hart | ||
| Year | Race | Constructor / Driver | Time |
| 1982 | Netherlands | Toleman / Derek Warwick | 1:19.780 |
| 1984 | Monaco | Toleman / Ayrton Senna | 1:54.334 |
| Fastest laps | Hart | ||
| Year | Race | Constructor / Driver | Time |
| 1982 | Netherlands | Toleman / Derek Warwick | 1:19.780 |
| 1984 | Monaco | Toleman / Ayrton Senna | 1:54.334 |