Toyota gave a first Formula One test to 18-year-old Italian Andrea Caldarelli in Bahrain this week.
Caldarelli has been a member of the Toyota Young Driver Programme since 2007 and finished third in this season's Formula Renault Eurocup.
He completed 128 laps during Monday and Tuesday in the TF108, finishing with a best time of 1:33.170 - two seconds off Jarno Trulli's qualifying time at the same track earlier this year.
"This has been a great experience for me and I have thoroughly enjoyed it," said Caldarelli. "To get the chance to test a Formula One car when I am still only 18 is such a good opportunity and I was determined to make the most of it.
"Obviously, the TF108 is a big step up compared to my usual car. The power is amazing but so are the brakes, and the grip you have going round corners takes a few laps to adjust to. I think I did a good job considering the circuit is new to me and this is my first full F1 test.
"I would like to thank Panasonic Toyota Racing for giving me the chance. This experience gives me extra motivation to fight as hard as possible to one day race a Formula 1 car."
Timo Glock was also testing this week, analysing the new Bridgestone slick tyres with a low-downforce configuration and working on Toyota's KERS development. The team expect to test their KERS for the first time on track in January.
Glock completed 258 laps during the week with a best time of 1:32.090. The team's test driver Kamui Kobayshi completed the team's annual test mileage by running for 33 laps today.