Wolff: I would be careful with predictions

"I would be careful with predictions," the Austrian told reporters on Sunday night as championship leader Hamilton celebrated his second win in a row and third in Spain.

"We have seen performance that swings from racetrack-to-racetrack, and even from day-to-day, and this is how we take it at the moment."

Ferrari, with Sebastian Vettel leading the way, enjoyed a one-two in Monaco last year and, while the Italians may not be feeling quite so confident after the last three races, should go well there again.

"Why our car doesn´t like to be quick around the corners in Monaco, we haven´t found out yet. We know what went wrong last year," said Wolff, who pointed out that Barcelona had always been a strong track for Mercedes in races and testing.

"As much as I am overwhelmed by the victory (in Spain), my mind is already in Monaco and I remember Sunday night wasn´t as pleasant last year."

Hamilton qualified only 14th and finished seventh in the principality last year.

Now 17 points clear of Vettel after five races, he has some margin of comfort and pointed out that even in races where he has not had a great afternoon this season he has still managed to bank solid points.

His situation is also a lot more comfortable than Vettel's, with the German -- also a four-times world champion -- now off the podium for three races in a row.

"I think this has been a good race in terms of feeling again what I felt in the first race. It shows that it wasn´t just a one-off," said Hamilton, who was on pole at the opener in Australia in March but then lost some confidence in the car.

"These different things that are coming up are going to be challenging and I don´t think it´s going to be as clear as it was [on Sunday]," added the reigning F1 World Champion.