Rubens Barrichello was fourth quickest today for Williams at the Circuit de Catalunya.
The Brazilian managed 105 laps in total, a marked improvement on what team-mate Pastor Maldonado did yesterday, when a KERS problem restricted him to just 29 tours. The veteran spent the day focusing on set-up work and declared he was pleased with new modifications to the FW33.
“We had two aims today; to work on new tyre runs and to carry out some long runs,” said Barrichello, who's best lap was a 1 minute 22.637 seconds. “The new updates on the car seem to have made the car more consistent, and I was happy with our long run pace compared to last week.
“There's still some work to be done though to improve our performance on the first lap on new tyres.”
Williams technical director Sam Michael meanwhile was also a lot more happier this evening: “After completing some checks and mapping work with the new aero package, we went through a range of mechanical set-ups today,” he added.
“We're seeing some quite positive signs and we're heading in a good direction. We did have a failure on a very high mileage, rear suspension component late in the afternoon, so we're analysing the data on that now.”
To see Thursday's testing times in full, click here