Valtteri Bottas reckons the new front-wing Williams have developed is a "step in the right direction", albeit only a small one.

Williams have only brought one new front-wing to the Hungaroring and with Bottas higher in the Drivers' Championship he got to run with it on Friday in practice for this Sunday's Hungarian Grand Prix and felt it was an improvement.

"A good first day, no problems. A good back to back with the wing in FP1, a normal working practice in FP2," Bottas said. "The step with the front-wing is not easy to feel, it is quite small. I did my best FP1 time with the old wing but I think it was because the lap with the old wing was better than with the new one.

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"When the difference is small, it is not easy to get the answer, but everything suggests it is a step in the right direction."

Asked if there were any problems with the new wing, Bottas replied: "I didn't feel any negatives. I am quite comfortable. Everything says it should be better and I am sure it is.

"Maybe small gains, but they are really small, but it is always welcome. At this type of track, the differences are in the hundredths so everything is going to help."

Bottas was ninth quickest in both sessions, but is optimistic the team will be stronger - as is usually the norm - on Saturday.

"I haven't seen any lap times on the long run but it didn't feel too bad, but we need to see how it compares to the others. It was not far off from our normal Friday, so we can see how we can improve for tomorrow. Qualifying will be close," he predicted.

"We just did our testing programme today, we focused on testing the front-wing [as I said] and did our normal work in FP2.

"We know how much we can improve for Saturday and I hope it is enough. I think it will be closer here than at Silverstone."

Pressed on if they can be 'best of the rest' behind Mercedes in qualifying, Bottas added: "Probably more difficult here than other places, but I think it is possible if we get everything right.

"There is still a possibility for a good qualifying."