Valtteri Bottas will have his first taste of the new Williams-Renault FW34 on the second day of next week's Barcelona test.
Bottas, who is scheduled to drive in 15 Friday practice sessions in his capacity as Williams reserve driver in 2012, has two days of testing under his belt with the team, both in last year's car during last November's Abu Dhabi young driver test.
Bruno Senna will drive on the first day of the test on Feb. 21 with Pastor Maldonado taking over for the final two days after Bottas' run.