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'We need to improve our car in fast corners' - Rosberg

Nico Rosberg: "There is still a lot of work to do of course" © Sutton Images

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• Nico Rosberg

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Nico Rosberg has pinpointed high-speed corners as Mercedes' main area for improvement after its three days of testing at Mugello.

Mugello is a high-speed track with sections that resemble Barcelona's Circuit de Catalunya where next weekend's Spanish Grand Prix will be held. Rosberg said his team had made progress over the three days of testing at the Tuscan circuit, especially with its early-season tyre-wear issue, but admitted there was still work to do.

"It has been a good testing programme for us here in Mugello, and I have been able to complete a lot of mileage in my Silver Arrow around this amazing track," he said. "Today, we learned a lot about tyre management, and this should help us at the next race in Barcelona. There is still a lot of work to do of course, and we do need to improve our car in fast corners, but overall I am pleased with the progress that we have made here this week."

After Michael Schumacher completed 144 laps in the Mercedes on Wednesday, Rosberg added another 129 laps on Thursday as the team worked through its planned testing programme.

"We have had a good week in Mugello, and been able to complete much of our planned test programme despite the loss of some track time on Tuesday due to the poor weather conditions," team principal Ross Brawn added. "The first opportunity for in-season testing for some time has proved beneficial, particularly as it has enabled us to test some new development ideas and take a closer look at improving the car from things that we have identified over the first four races. Mugello is a great track and I know that both Nico and Michael have enjoyed the experience of driving there this week."

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