Red Bull's Mark Webber had the fastest lap at a Formula One test session today, ending Torro Rosso's two-day reign.
The Australian completed a best lap of 1 minute, 19.176 seconds around the 4.423km Jerez circuit.
"We've had a pretty good two days here. The car ran pretty reliably and we've clocked up some good mileage," said Australian Webber, who was using the penultimate day of testing to prepare for next week's Hungarian Grand prix.
Nelson Piquet Jr. was next fastest with a time of 1:19.334 in his Renault, one-tenth of a second quicker than Ferrari's Kimi Raikkonen.
Ferrari has put serious emphasis on this week's four-day session in southern Spain following a disappointing weekend that saw it lose momentum to McLaren in Formula One's championship race.
"We have done many tests over these two days to try and understand what happened at Hockenheim and now we have a clearer idea on this matter," Raikkonen said.
"Today, the car had improved compared to yesterday and we hope to be ready for the next rounds."
Timo Glock of Toyota returned to the wheel for the first time since his high-speed crash at the German GP to time eighth out of the 10 drivers in 1:20.421.
Torro Rosso's Sebastian Vettel had posted the fastest laps for the first two days of the test. Sebastien Bourdais had Torro Rosso's best lap on Thursday, a sixth-fastest 1:20.029.
