Wolff: I doubt Ferrari have shown their full performance

Formula 1 championship leader Lewis Hamilton topped the timing screens by four-tenths of a second over teammate Valtteri Bottas, at the end of the afternoon FP2 session and eight tenths ahead of title rival Sebastian Vettel.

But, speaking to Sky F1 at the end of the afternoon session, Wolff smells a rat, "Ferrari have turned [it] down a bit. We are actually losing a bit through the esses, the fast corners, so I think probably Vettel's lap time is a little better at the moment."

The Merc boss referencing the GPs data that provides teams with a more accurate track of their rivals' performance

Validating his theory, Wolff continued: "In the morning they were quicker through almost every corner but they had a softer tyre."

"Now when we have the same tyre, we seem to be gaining in a straight line so that makes me doubt whether they have really shown their full performance, now through the esses they are quick so we are neck-and-neck, even though the lap times show a larger gap."

Hamilton tops the standings by 50 points over Vettel with five rounds remaining, but Wolff is taking nothing for granted, "In 2007, Lewis had an equivalent of 45 points advantage with two races to go and lost by one point. So we are far from having it in the bag."