Sebastian Vettel says it is impossible to predict a Ferrari title challenge in March, continuing the Italian team's careful management of expectations going into 2017.
Ferrari arrives at the Australian Grand Prix as many people's favourites for the championship after a very impressive pre-season in Barcelona. Lewis Hamilton frequently stated as much during the winter, with many expecting a closer fight at the front this year following three years of unmatched Mercedes dominance.
Vettel thinks there are too many unknowns with 2017's bigger, faster cars for anyone to make an accurate prediction about the pecking order at this stage.