Sebastian Vettel has suggested that Ferrari have moved beyond their initial targets for 2015.
The German drove to victory at the Hungarian Grand Prix at the end of July and is hoping to continue that form when the championship resumes in Spa later this month.
He told Sport Bild: "With a second win, several podiums and after some major changes made by the team over the winter, we are now beyond our initial planned target.
"We want to repeat the magic of the past. It is an ambitious goal, but I believe the potential is huge.
"We are obviously trying to catch them as soon as possible. We know it isn't easy as they have a powerful engine, a strong car and two strong drivers. But we are getting closer and closer, and at some stage we will turn the situation around."
Vettel's other win this season came at the Malaysian Grand Prix in March.
