Timo Glock posted the quickest time for Toyota on the penultimate day of Formula One testing at the Bahrain International Circuit.
Strong winds in the Middle East meant lower temperatures greeted the three competing teams for Wednesday's running, with Glock returning to the wheel of the TF109 in place of team-mate Jarno Trulli.
The German was able to continue with the solid off-season testing carried out to date on a trouble-free day that saw him complete well over 100 laps to outpace Felipe Massa by the best part of half a second.
"That was another good day for us,” he said. “We didn't have any major problems and we again made it through a lot of work. We concentrated on set-up and went through our programme smoothly. It has been a bit tricky to drive today because there was a lot of wind, which was also blowing from a different direction to yesterday when Jarno was driving. But in the end I'm happy that we did so much work and it's positive that we found some useful directions to work with."
For the second successive day, Ferrari ran into some trouble during its running with a gearbox issue limiting Massa's time on track in the morning. However, he was able to complete a full grand prix simulation during the afternoon before seeing his time on track ended by an electrical issue that stopped the F60 on track.
That left Nick Heidfeld to bring up the rear in third place for BMW Sauber.
He too ran into problems as, having run solidly during the morning, the German was forced to stop on track on two occasions during the afternoon with mechanical problems.
“Obviously that cost us some track time,” Heidfeld said. “But despite this I managed to run for 444 kilometres and we made good progress with the development of the car. We are still learning the car and have already identified a few areas where we can make improvements.”
Testing concludes tomorrow.