Sebastian Vettel believes that just because the drivers know the Barcelona so well that doesn't mean it can't offer a few surprises.
Last season, the Red Bull racer claimed the victory at the Spanish GP, holding off McLaren's Lewis Hamilton.
It is a race that can at times be processional due to the fact that the drivers test there in the pre-season and therefore all know the track very well and which lines to take.
However, Vettel has warned against complacency, saying there are times mother nature adds to the Barcelona experience.
"Of all the current GP tracks, Barcelona is the one that we know the most because we have done so much testing there in recent years," said Vettel.
"That said, the knowledge that you gain at the tests doesn't always help due to the changing wind direction that occurs there, which can sometimes give you a nasty surprise, especially into Turn 1.
"But in general, a car that functions well aerodynamically in Barcelona will work everywhere - so it will be an interesting weekend.
"We have been working on the package for Barcelona at this week's test, but we will still have set-up work to do there on arrival."
Vettel's victory at the previous race in Bahrain put the German at the top of the Drivers' Championship with 53 points, four more than Hamilton.
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