Williams has confirmed test driver Susie Wolff's schedule for the forthcoming season.
She will be behind the wheel of the FW37 for two days' testing. In addition to day one of the pre-season test at the Barcelona, on 19 February, she will also drive on one day of testing at the Red Bull Ring following the Austrian Grand Prix.
She will also take part in two FP1 sessions in 2015 at the Spanish and British Grands Prix. This on track experience will be supplemented with an extensive programme of work in the team's simulator to help with the ongoing development of the FW37.
This run programme builds on her previous experience driving the FW36 during two FP1 sessions in 2014, and her previous experience testing at the Young Drivers Test in 2013 and straight line aerodynamic tests for the team.
"Our focus this year is to build on the success of 2014," said Wolff. "I've been training hard all winter and I am physically in the best shape I've ever been, so I am ready for the season ahead. As Official Test Driver I will have additional time in the FW37 and by correlating this with my work in the simulator, the team can ensure we are getting the best from the car and check how updates are performing. All of us drivers on the Williams roster have been working closely together on this and we are ready to give everything we can to the 2015 season."
"Last season Susie impressed with her performances during FP1 at Silverstone and Hockenheim and we were keen to give her another chance to test in 2015," added Claire Williams. "She knew the FW36 well and with the FW37 being a gradual evolution, we were keen to utilise this knowledge and get her in the car to help assess and validate the approaches we have taken."