The 30-year-old German finished behind Mercedes-Amg driver Lewis Hamilton in the 2017 F1 driver standings.
"Sebastian Vettel is a guy who studies a lot, studies himself and is committed," the 65-year-old was quoted as saying by Sky Sports.
"Therefore, I think that we will see less of his emotional side. I think he has learned enough.
"Plus, there were plenty of opportunities for him to get annoyed, as he's had a couple of rather difficult seasons, this year and the previous one," Marchionne added.
The Ferrari chief also claimed Vettel was given a great car in the 2017 season but he could not make the most of it.
"I think we gave them a great car in 2017 and so, from now on, it's down to him," Marchionne said.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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