Sebastian Vettel says he needs a step overnight after difficult Friday practice

The German struggled with his car's handling in the morning, finishing down in 11th position, but was happier with his afternoon form.

The rain, however, meant little running was done and Vettel managed 19 laps in the second session. He was 10th quickest.

"Maybe we did not get everything we needed but we can be quite happy," said Vettel.

"This morning it was not very good - I wasn't happy at all in the car. This afternoon was a bit better but with the conditions it is difficult to get a lot of running. It's more or less the same for all of us.

"The little time we had in the afternoon was quite okay. It's up to us to find the balance and understand the car a bit more on these conditions on this circuit, and hopefully go a lot quicker tomorrow.

"The important thing now is to make a step overnight and go from there. Track time is important when the car is still young."

Vettel said it was still very hard to read into the times and claimed his goal for Saturday was to go into Q3 and see what his chances are from there.

He added: "It was pretty messy in the end, especially the only a couple of laps in the dry. It's difficult to read.

"First of all we need to see, analyse the speeds or who had his DRS open or not, then you can guess who had more fuel and I think that is how you do it as well. It's difficult to say. Tomorrow the target is to get into Q3 and then we go from there."

The German admitted the team had "a lot" to learn after the first day of running.

"It would be nice if we were in a similar position to control the race from the front. There is a long way to go. This morning was not good at all, this afternoon was better. We have to learn a lot and go from there."