Reigning world champion Sebastian Vettel says there is still more speed to come from his Red Bull RB9, despite setting the fastest time in both practice sessions in Hungary.
Vettel led team-mate Mark Webber in FP1, when teams ran the prime tyres, as well as during the qualifying simulations on option tyres in the afternoon.
In spite of his pace, Vettel reckons there is more speed to be found in his RB9.
"The car feels okay, but there’s always a lot of work to do and there’s some room for improvement," he said.
"My long run wasn’t completely clean, as we had to abort it at the start due to the brakes being a bit hot, but you work to find the limit. I don’t think the tyres feel massively different, but they are a step in the right direction."
Webber also expressed his pleasure following the first day of running in Hungary.
"It went well today and I’m happy, the car felt good and the team did a great job," he said.
"Sunday is the main thing; qualifying is important, but Sunday is what we have to focus on. It’s a demanding circuit and the conditions are set to stay the same, so I don’t think we’ll be changing a huge amount tonight."