Ferrari President Sergio Marchionne says the outfit made a pleasing step forwards in 2015 but warned that the "real battle" for overall honours begins in earnest in 2016.
Ferrari endured a win-less campaign in 2014 but linked up with Sebastian Vettel in 2015 to secure three victories and emerge as Mercedes' primary challenger.
Marchionne says Ferrari's development across the course of the year was good news but is aware that the team needs to move up further next year.
"You know that the real battle starts in 2016, but we can count on two drivers who have already been world champions and engineers who can take us back to the top," Marchionne said, addressing the team at its annual pre-Christmas lunch.
"This year, we’d have been happy with two wins, but we managed three, as well as a whole host of podium finishes. The most important thing is that, above all, we made the most of our in-house resources, without taking on too many outsiders
"2015 was a great season. The only regret might be that we could have done even better but for a handful of mistakes.
"But overall, I am very pleased, considering where we started from this year, as that is the real reference point.
"In any case, I have great respect for our competitors and it will only be at the first race in Australia that we will see how things really stand."