Run under sunny conditions the team would focus their testing on set-ups and aero development work, in addition to brake testing and tyre evaluations. Both would have trouble free days as they prepared for the Italian Grand Prix.

The two BMW WilliamsF1 drivers would complete one hundred & sixteen laps. Antonio would set a best lap time time of 1m:20.770, while Juan Pablo was only 0.044s slower, setting a time of 1m:20.814.

WilliamsF1 Technical Director Sam Michael commented on the three days of testing by saying: "We’ve had a productive test at Monza with Juan Pablo and Antonio. We worked on ensuring that we have a solid brake and engine cooling package for next weekend’s Grand Prix, while we also evaluated different mechanical and aerodynamic set-ups. Michelin have produced some new compounds for the Grand Prix at Monza to give us a competitive tyre for the race.

Following the tyre problem that Juan Pablo had at Spa, which appears to have been caused by external influences rather than any specific design problem, we tested some tyres at Monza with some changes. The tyres are similar to what we used at Spa as these changes are just precautionary rather than a requirement for safety".

BMW Motorsport Director Mario Theissen added: "The team had a productive three day test so we feel well prepared for the race at Monza. The programme's focus was on chassis set-up for the high-speed circuit of Monza and on tyre evaluations for the forthcoming races. Regarding the BMW P84, we completed some final tests of a new engine specification and, once again, we will bring increased engine power to the Monza race. In addition, we made further improvements to the set-up for the starts. During the test we also identified certain weak points which has given us information for future development work.”

Pos Driver Team-Engine Tyres Time Laps

1. Alonso Renault (M) 1:20.612 100
2. Button BAR-Honda (M) 1:20.690 93
3. Pizzonia WilliamsF1-BMW (M) 1:20.770 92
4. Montoya WilliamsF1-BMW (M) 1:20.814 24
5. Trulli Renault (M) 1:21.034 59
6. Davidson BAR-Honda (M) 1:21.129 63
7. Badoer Ferrari (B) 1:21.131 99
8. Raikkonen McLaren-Mercedes (M) 1:21.138 82
9. Wurz McLaren-Mercedes (M) 1:21.230 82
10. Klien Jaguar-Cosworth (M) 1:21.556 122
11. Massa Sauber-Petronas (B) 1:21.630 95
12. Panis Toyota (M) 1:22.005 73
13. Webber Jaguar-Cosworth (M) 1:22.112 94
14. Zonta Toyota (M) 1:22.281 86
15. Heidfeld Jordan-Ford (B) 1:23.491 74