"At Ferrari we had a good winter and the car is more or less what we expected," BBC Sport quotes him as saying.
"To arrive here and be fighting for the podium was the aim of the weekend, to start the season with a more competitive package and this aim was achieved. The car felt good so being on the podium is job done, let's say.
"We saw Lotus were very quick in the winter and they did a fantastic weekend and deserve the victory. The Red Bull is the quickest car, first and second in practice and qualifying. They suffered a little bit in degradation in the race, but it doesn't mean they are not the fastest."
The next race will be the Malaysian Grand Prix next weekend.