Rio Haryanto is positive after completing the first day of running at the two day test at Silverstone earlier this week.
After out of the British Grand Prix in wet conditions last weekend, The Indonesean used the mid-week running to analyse where to improve, while trying out the latest upgrade to Manor's car/
"We tried some new items in the car," Haryanto said. "One of them is the brakes and that was part of different set-ups in the front. I think it was positive but the lap times weren’t really representative because we were running quite high fuel. It was more a case of having good feedback and good feeling with the new items."
"We made a step with the brakes. I thought the retardation was better so I think we will take these forward for the next event," he continued. "The set-up of the car was helping me a lot in the slow corners and again Budapest has a lot of slow corners. Mechanically it’s a step forward for us."
Bahrain International Circuit - Winter testing