Gene's time would be some two seconds faster than the time set by Pizzonia the day before, with a lap of 1m:10.451. His time was set with the car in what was basically qualifying setup.

Where as Pizzonia spent the day working on race simulation runs testing both the engine and the chassis. He would test the engine mapping, the brakes and new components on the car. He would finish the day with a best lap of 1m:12.011 to be second fastest.

Gene's testing was again in preparation for the Grand Prix at Monaco. He tested various aerodynamic settings and tyre choices. In a positive sign for reliability neither drivers reported and problems.

"We had a productive day in Valencia today with Marc concentrating on performance runs to evaluate new tyre developments for Monaco. Michelin appear to have taken another step forward but we will find out in Monaco," said Sam Michael, the teams Chief Operations Engineer.

"Antonio’s program has been long runs for engine and chassis race simulation work," he continued. "He has done a solid couple of days testing and Ralf will take over this car tomorrow for the remainder of the test."

Ralf Schumacher is going to replace Antonio Pizzonia at Valencia on Thursday. Together with Marc Gene, he is going to continue the testing until Saturday.

1. Marc Gene - Williams - 1:10.450
2. Antonio Pizzonia - Williams - 1:12.011
3. Jacques Villeneuve - BAR - 1:12.517
4. Jarno Trulli - Renault - 1:12.729
5. Fernando Alonso - Renault - 1:12.952
6. Giancarlo Fisichella - Jordan - 1:13.117
7. Anthony Davidson - BAR - 1:15.166