While Ferrari seems to be slightly more competitive than it was in Belgium last weekend, the duo still faced a difficult first day of running at Monza as both had their moments at the Lesmo corners.
Vettel ended up 19th overall in first practice before moving up to 12th in the afternoon, while Leclerc was 9th quickest in FP2.
Reflecting on the day, Vettel said that the Ferrari SF1000 had not been particularly easy to extract lap time from.
“Well the car is difficult to drive, but as I said, it’s not the first time,” said the German. “So where are we lacking? I think we’re losing down the straights, which is expected.
“We are lacking grip on corner entry with pretty much all four wheels. The car is sliding quite a lot. And.. it’s a handful.
“But yeah, it’s very difficult to get everything right to get the lap together. But we’re trying to make it a bit better for tomorrow.”
Leclerc said that the Ferrari seemed to be better on single-lap pace than in race trim, as he felt Sunday could be especially difficult.
“I think we expected a bit worse on the low-fuel runs but then on the high fuel we expected a bit better,” he explained.
“So we definitely need to try to find something for the race, otherwise it’s going to be very, very difficult.
“We seem to struggle quite a lot with the balance…