front wing. Alesi was unhurt. De La Rosa in 16th was slowed by the rain. Car setup issues put Herbert 17th. Gené in 18th ventured onto the track early in the session. Nick Heidfeld used the spare Prost car to secure 19th due to a clutch failure in his race car. Diniz in 20th had a similar rear wing failure to his teammate Salo in 22nd. Fuel pressure problems led Mazzacane to drive the spare Minardi car; he separated the Sauber duo in 21st. Post-qualifying During the second stoppage, Sauber announced its withdrawal from the race, citing a lack of time in Brazil to analyse and rectify the structural integrity of the rear wings on both their cars. The team returned to their Hinwil headquarters and found the track's bumpy surface resulted in both of their cars having higher than anticipated impact loads; Salo had a failure of the lower plane on his rear wing and Diniz's failed on the upper plane. Qualifying classification Notes: Sauber withdrew Pedro Diniz and Mika Salo on the grounds of safety due to separate rear wing failures on their cars. Warm-up A 30-minute warm-up session was held on Sunday morning in hot and overcast weather. All drivers fine-tuned their race set-ups and drove their spare cars. Häkkinen set the session's fastest lap at 1 minute, 16.343 seconds, ahead of Michael Schumacher, Coulthard, Barrichello, Verstappen, Ralf Schumacher, Gené, Fisichella and Zonta in positions two to ten. Ten minutes in, Wurz stalled his car at the exit of the pit lane, and the session was stopped. He required the spare Benetton B200 car for the rest of the session. Alesi's engine failed and he switched to the spare Prost AP03, which had a rear wing failure on the bumpy start/finish straight, and caused a second stoppage. After the warm-up session, and before the race, Prost examined Alesi's rear wing and found that its failure was due to older bodywork parts fitted to his car and readied its spare chassis if required. The team stated they were unconcerned over the safety of their drivers and confirmed their participation in the event. Race The race began at 14:00 local time. The weather at the start was hot and dry with the ambient temperature , the track temperature , and the humidity at 76 per cent. Approximately 72,000 spectators attended the race, most of whom were supporting Ferrari. Computer