Ferrari technical director Aldo Costa played down the team’s performance in the first test of the year at Valencia, saying: “We are fast but we don’t know how fast we are compared to the others.”
The F10 was the fastest car on all three days of the test and completed more laps than any other car in the hands of Felipe Massa and Fernando Alonso.
In the video above Costa also talks about the developments coming on the car over during the next three tests.
Read more: F1 testing review: Valencia (Pictures)
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