Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Driver | Constructor | Laps | Time/Retired | Grid |
| --- | --- | --- | --- | --- |
| Mika Häkkinen | McLaren - Mercedes | 78.0 | 1:51:23.595 | 1 |
| Giancarlo Fisichella | Benetton - Playlife | 78.0 | +11.475 | 3 |
| Eddie Irvine | Ferrari | 78.0 | +41.378 | 7 |
| Mika Salo | Arrows | 78.0 | +1:00.363 | 8 |
| Jacques Villeneuve | Williams - Mecachrome | 77.0 | +1 Lap | 13 |
| Pedro Diniz | Arrows | 77.0 | +1 Lap | 12 |
| Johnny Herbert | Sauber - Petronas | 77.0 | +1 Lap | 9 |
| Damon Hill | Jordan - Mugen-Honda | 76.0 | +2 Laps | 15 |
| Shinji Nakano | Minardi - Ford | 76.0 | +2 Laps | 19 |
| Michael Schumacher | Ferrari | 76.0 | +2 Laps | 4 |
| Toranosuke Takagi | Tyrrell - Ford | 76.0 | +2 Laps | 20 |
| Jean Alesi | Sauber - Petronas | 72.0 | Gearbox | 11 |
| Jarno Trulli | Prost - Peugeot | 56.0 | Gearbox | 10 |
| Olivier Panis | Prost - Peugeot | 49.0 | Wheel | 18 |
| Ralf Schumacher | Jordan - Mugen-Honda | 44.0 | Suspension | 16 |
| Alexander Wurz | Benetton - Playlife | 42.0 | Spun off | 6 |
| Jan Magnussen | Stewart - Ford | 30.0 | Suspension | 17 |
| David Coulthard | McLaren - Mercedes | 17.0 | Engine | 2 |
| Rubens Barrichello | Stewart - Ford | 11.0 | Suspension | 14 |
| Heinz-Harald Frentzen | Williams - Mecachrome | 9.0 | Collision | 5 |
| Esteban Tuero | Minardi - Ford | 0.0 | Spun off | 21 |
| Riccardo Rosset | Tyrrell - Ford | 0.0 | Did Not Qualify | DNQ |
Question:
Which driver had a grid number of 18?
Answer:
Olivier Panis