Daniel Ricciardo led the way at Jerez on Thursday for Red Bull Racing, as the 2009 F1 young driver test came to a close at Jerez in southern Spain.
Ricciardo completed 77 laps in total in his Red Bull RB5, his best a 1 minute 17.418 seconds, more than a second up on his closest rival.
He spent the day working on aerodynamic testing and even though track time was shortened by some light rain in the middle of the day, he still completed the planned programme. Indeed his best lap was not only easily the fastest of the week, but it was also the best recorded at Jerez this year.
"These last three days have been an incredible experience for me," said the 2009 British F3 champion as he reluctantly stepped out of the cockpit. "I would like to thank Red Bull for giving me this great opportunity, which has made me even more determined to make it into F1 one day.
"I know it was just a test, but seeing my name on the top of today's timesheet was really something special."
Paul di Resta meanwhile was 'best of the rest' on a 1m 18.736s, despite a few issues after lunch: "It was a little interrupted this afternoon with one spin into the gravel and then an electrical issue that stopped us out on track so we lost some time in places," explained the Force India 'guest' driver.
"All the same the team ran through their programme and despite the stoppages we made progress and I think the team got some good results. I think I had a good time at the end and found some more performance so I'm happy on both accounts. Thanks to everyone for a great week and for giving me a chance."
Gary Paffett rounded out the top three, taking over the McLaren-Mercedes MP4-24 from Oliver Turvey this afternoon. Paffett focused on a series of set-up and tyre analysis runs, while Turvey, who was seventh on the unofficial timesheets, did some aero tests and several ten lap runs.
"Oliver did a very good job and contributed towards our week's test work," said McLaren test team manager, Indy Lall. "He made a very good impression on his introduction to F1."
Next quickest was Mike Conway, who led the way for Brawn, three tenths off di Resta and Paffett, followed by Nico Hulkenberg's Williams and the BMW Sauber piloted by Bertrand Baguette.