The Cosworth powered WilliamsF1 team have concluded their penultimate week of testing prior to the season opening Bahrain Grand Prix with Nico Rosberg and Alexander Wurz finishing the scheduled session in the cold conditions at the Circuit de Catalunya in Barcelona Spain. Finishing the day in sixth place overall, Nico completed a total of 41 laps as he concentrated on tyre testing for Bridgestone, focusing on their different compounds.

Meanwhile, Alex concentrated on long runs to investigate various mechanical set-ups and brake cooling. The team’s third driver managed 68 laps to record the tenth and slowest time of the day. The Grove based squad also tested some new aerodynamic parts for the FW28 over the course of the week and confirmed that they are all working as expected.

“Cosworth completed this week’s Barcelona test in reasonable shape,” said Simon Corbyn, Head of F1 Race Engineering, Cosworth. “The first day was difficult as we had to stop running Mark’s primary Series 2 test engine when it developed a leak which couldn’t be fixed trackside. In addition, Nico suffered an engine failure, although this was at high mileage and was an earlier spec engine. Fortunately, the remainder of the test was rather less eventful as Alex successfully exceeded the two race weekend target mileage on his Series 2 engine, plus we were able to complete valuable engine calibration work in preparation for Bahrain.”