After trialling the new shorter nose in Bahrain, the update has been moved across to Valtteri Bottas' car for this weekend because the team has not yet got two units ready.

Following a frustrating Bahrain GP, where early promise faded over the course of the race, Massa has admitted that getting a better understanding of the nose is important.

"Well I don't think really it was a very easy weekend to learn in Bahrain," said Massa, who only had it fitted to his car on the Saturday in Bahrain.

"We are going to have another one, only one, on the other car now so we need to wait and see how it is going to work on the race, on this track.

"And we need to understand if it is really better or not. For the moment I am not 100 per cent sure."

Lessons learned

Massa hopes that Williams has learned some key lessons from what happened in Bahrain – both in terms of updates and tyre strategies.

"I think there was a lot of lessons to learn from Bahrain, definitely," he said. "First of all, regarding the car, so trying to understand things in a proper way, in terms of all these new parts that we had, trying to do a more understandable plan on Friday, to understand things in a better way.

"Strategy, I would say it was definitely clear that we didn't do the right strategy on the race, the right understanding on the tyres, so we know that these two points are very important on the result this weekend.

"We had a very long and important week last week to try to improve things and I really hope that we can have a better weekend here."