The day would see Marc complete a race simulation while in preparation for the British Grand prix. Marc would complete one hundred and twenty four laps, way above what the cars would have to cover in any Grand Prix. The simulation was run without any problems.

For Ralf Schumacher he would also focus on setup work for the British Grand Prix as well as tyre testing. He would complete ninety five laps.

WilliamsF1 Test Team Manager, Tim Newton: “We completed our penultimate test day today at the Circuit de Catalunya under clear and sunny skies. Ralf spent the day evaluating set up options as well as performing some tyre testing for Michelin.

Marc successfully completed a race distance this morning whilst spending the afternoon on further set up work of the FW25. In total, the drivers covered over 1000 kilometres between them today which has provided us with some invaluable information prior to the race at Silverstone next weekend.“

Friday will see the BMW WilliamsF1 Team complete their last day of testing prior to a seven week test ban coming into force.

Pos Driver Team-Engine Tyres Time Laps

1. Barrichello Ferrari (B) 1:17.828 103
2. Gene Williams-BMW (M) 1:18.025 125
3. R. Schumacher Williams-BMW (M) 1:18.411 95
4. Firman Jordan-Ford (B) 1:18.423 62
5. Panis Toyota (B) 1:18.672 84
6. Raikkonen McLaren-Mercedes (M) 1:18.724 111
7. Webber Jaguar-Cosworth (M) 1:18.786 106
8. Sato BAR-Honda (B) 1:18.847 96
9. Heidfeld Sauber-Petronas (B) 1:19.335 46
10. Button BAR-Honda (B) 1:19.869 105
11. McNish Renault (M) 1:19.869 101
12. Villeneuve BAR-Honda (B) 1:20.052 105
13. Coulthard McLaren-Mercedes (M) 1:20.075 46
14. Wurz McLaren-Mercedes (M) no time 7