Max Verstappen thinks it will be impossible for Red Bull to challenge Ferrari in dry conditions at the Hungarian Grand Prix. 

Reigning Formula One champion Verstappen could only manage fourth in the second free practice session on Friday, with Charles Leclerc almost three tenths of a second quicker. 

Rain is forecast for qualifying on Saturday and the Dutchman believes it will be essential for him to have any chance of pushing the Scuderia all the way. 

"A bit tricky as expected around here. Just trying to find a balance from high to low speed," said Verstappen. 

"Sometimes it worked a bit better, sometimes a bit more tricky but a bit of work to do. 

"I think [Ferrari] are a bit ahead of us. I think it will be hard for us to beat that. But I think overnight we will try to close the gap as much as we can and see what the weather will give us as well. 

"I think in the dry we can't compete, so maybe in the rain we can, who knows?" 

After the disappointment of crashing out from the French Grand Prix last weekend, Leclerc felt Ferrari were on "the right road" with their race simulations. 

"It's been a very productive day, changed quite a lot of things on the car on my side," said Leclerc. "FP1 was quite tricky, FP2 we took the right road so confident that we did the right work for Sunday. 

"It looks like it's going to rain [on Saturday] so we have to be on top of this and obviously put the tyres in the right window, which is always a difficult thing whenever it's raining. 

"This will be our main priority, but hopefully if we manage to put them in the right window, we will still have this advantage."