Much was said about the potential pecking order ahead of Melbourne and, while some of the dust has settled ahead of Bahrain, Valtteri has admitted it is still difficult to predict.
"We can only guess. But I think historically Ferrari has been good here," he said, when asked about the possible competitive order this weekend.
"They had good race pace in Australia. Last year they had stronger pace here (in Bahrain) than in Australia.
"So, I think they're going to be a threat and they're going to be close to us. Even Red Bull could be, too.
"But more than that, it's difficult to say. We will have to see how the weekend develops."