Mark Webber topped the timesheets on the third day of testing at Jerez de la Frontera as the weather finally took a turn for the better.

Despite heavy rain throughout the night that led to localised flooding, after a damp start the sun finally broke through and the eleven teams were able to get down to business.

Mark Webber was back in the RB6, beginning the day on extreme wet tyres before switching to intermediates and finally dry. A small mechanical issue early afternoon cost the team around two hours of running time, but the Australian was able to get back out with plenty of time remaining and completed a series of short and long runs to test various chassis set-ups and analyse tyre degradation.

"We're certainly showing some good form in terms of reliability," said Webber, "but we always need to work on performance; you never know that the other teams are doing. We're in a good position at the moment to build up to the first race - it's close, but there's also quite a way to go, as other teams have no doubt planned developments for Bahrain. We're doing the work we need to do, in order to understand the car more."

"It's good to finally get some dry conditions and complete some proper runs on dry tyres," added Ian Morgan, the team's head of race engineering, "which we've done very little of with this car so far. We did 115 laps today, which is pretty good; things look promising."

Fernando Alonso was back on track for Ferrari as the Maranello outfit worked on set-ups and comparing car and tyre behaviour in a variety of race situations.

"I'm satisfied by today, because we could drive many miles on the dry," said the Spaniard. "The results are positive, because we got to know the new car better. Also my place in the team is improving from day to day, as is my feeling for the F10. We can confirm that step by step we're arriving at 100%."

At McLaren, Jenson Button was able to spend the majority of the day working on mechanical set-up development. The Englishman - who completed 101 laps - said he was happy with the day's progress, and his engineers are said to be extremely pleased with the extent to which he has been able to establish himself within the team, and the depth and scope of his feedback.

A few minor components will arrive overnight for evaluation tomorrow, but the main aim of the programme remains a continuation of today's set-up development work.

Nico Hulkenberg was the busiest driver today, completing 138 laps on his way to posting the fourth best time of the day.

"Nico spent most of the morning doing pitstop practice with the race team before moving on to a race simulation," said Sam Michael. "He then followed that up with a long run for set-up work. The cause of the problem which forced Nico to stop out on track towards the end of the session was hydraulic, but the part was high mileage. Nico will spend the evening working on set-ups and will continue running tomorrow."

Michael Schumacher focused on developing the set-up of the W01 and evaluating various changes over longer runs. "Today was a nice end to my testing days in Jerez this week," said the German, "and it was great to finally have some consistent dry running. We are on schedule with our programme but at the same time, we are well aware that there is still a lot of work ahead of us. The final test in Barcelona next week will be an important test in this respect and will give us valuable information about the performance of the car."