Nico Rosberg set the fastest time during final practice for the British Grand Prix.
Rosberg's time of 1.31.487 was 0.146s clear of team-mate Lewis Hamilton
Reigning world champion Sebastian Vettel was third, over a half of a second down on Hamilton's quickest time.
Mark Webber was fourth, ahead of Romain Grosjean, Daniel Ricciardo and Fernando Alonso.
There was another worrying incident for Pirelli when Sergio Perez suffered a tyre failure early on in the 60 minute session.
Perez's left rear tyre suffered an 'instantaneous failure', forcing the Mexican to limp back to the pits.
The session was briefly red flagged while Perez's debris was recovered.
The McLaren driver's eventful session continued when he suffered a high speed spin at Chapel with four minutes remaining. He eventually ended up down in eighteenth place.