Testing continued at Jerez on September 14th with once again just three teams at work on the Spanish track. Honda's Rubens Barrichello topped the times with a best of 1:17.601 and the team also had development driver James Rossiter on duty, fourth on the time sheet. Aero evaluation, tyres and set up were their programme.
Giancarlo Fisichella joined Renault's programme and was second quickest, a tenth down on Barrichello. Test driver Heikki Kovalainen, who was fastest on Wednesday, was due to be on track again but was feeling unwell, so youngster Jose Maria Lopez continued with software development and set up. Fisichella worked on tyres but was hampered by mechanical issues.
"We must admit that this was a tough day for the team because of mechanical problems with the cars," said chief test engineer Christian Silk. "But the data we did manage to collect is interesting and will need to be completed tomorrow. The team did today a great job to optimize the running time as much as possible and that is a positive point."
Test driver Robert Doornbos continued for Red Bull, preparing for his race debut with the team in China. The second Red Bull car was driven by Tonio Liuzzi today, on loan from sister team Toro Rosso. They rounded off the times, Doornbos fifth and Liuzzi sixth, the latter being a second off the pace of Barrichello.
In damp conditions at both circuits, Ferrari was at work at the Paul Ricard HTT and at Fiorano. Michael Schumacher was on track at the former and clocked a best of 1:01.267 over 185 laps of the 2A-SC configuration. Felipe Massa racked up 134 laps of Fiorano with a best time of 1:03.364 and both drivers worked on tyres on the last day of Ferrari's test.