On a day that was sunny with blue skies Juan Pablo's time of 1m:09.318 would be over a tenth faster than Michael. The Ferrari driver was using the 2003 F2003-GA model rather than the F2004. Joining Juan Pablo was Ralf Schumacher and Antonio Pizzonia.

Ralf would finish the day third behind his brother while Pizzonia was fourth, driving the FW25B. Both Ralf and Juan Pablo were using the new FW26. Juan Pablo spent his day carrying out tyre testing for Michelin, evaluating various tyre compounds. He would complete fifty four laps.

Ralf would continue to focus on setup work on the new FW26, completing a total of eighty laps with a best lap time of 1m:09.690. Pizzonia would complete eighty three laps, finishing with a time of 1m:10.157.

WilliamsF1 Chief Operations Engineer Sam Michael said: "Today Juan Pablo did some set-up runs in the morning and tyre testing in the afternoon. He found two good compounds with Michelin that Marc will do long runs on in tomorrow's race simulation. Ralf joined us today and spent the entire day testing different mechanical and electronic set-ups. Antonio Pizzonia also re-joined us today and worked on electronics and tyre set-ups in the FW25.”

Test driver Marc Gené will return to testing on Thursday, joining Ralf and Antonio.

Pos Driver Team-Engine Tyres Time Laps

1. Montoya WilliamsF1 BMW (M) 1:09.318 54
2. M. Schumacher Ferrari (B) 1:09.426 86
3. R. Schumacher WilliamsF1 BMW (M) 1:09.690 80
4. Pizzonia WilliamsF1 BMW (M) 1:10.157 85
5. Zonta Toyota (M) 1:10.355 91
6. Button BAR-Honda (M) 1:10.360 80
7. Panis Toyota (M) 1:10.435 88
8. Trulli Renault (M) 1:10.492 86
9. Massa Sauber-Petronas (B) 1:10.638 54
10. Sato BAR-Honda (M) 1:11.091 99
11. Montagny Renault (M) 1:11.284 106
12. Webber Jaguar-Cosworth (M) 1:11.386 49
13. Wirdheim Jaguar-Cosworth (M) 1:11.791 104
14. Bruni Minardi-Cosworth (B) 1:12.469 22
15. Baumgartner Minardi-Cosworth (B) 1:22.221 6e.