Williams driver Felipe Massa set the fastest time at the halfway point of the first day of the third in-season test at Silverstone.
Massa’s time of 1:35.242 on the Medium compound tyres was three tenths of a second clear of championship leader Nico Rosberg, who returned to the cockpit of the Mercedes W05 Hybrid following his disappointment in Sunday’s British Grand Prix.
Sergio Pérez was third, with Jules Bianchi in fourth for Marussia. The Frenchman was the most productive driver of the morning, having completed 73 laps while tyre testing for Pirelli.
Jean-Éric Vergne caused the only red flag of the morning when his Toro Rosso stopped on track two hours into the session.
Pastor Maldonado was sixth, ahead of Ferrari development driver Pedro De la Rosa, who conducted tyre testing in association with Pirelli in the F14T.
Stoffel Vandoorne returned to Formula 1 action after his test debut in Spain and set the eighth fastest time, ahead of Adrian Sutil and Caterham academy driver Will Stevens.
Daniel Ricciardo rounded out the runners as despite completing 23 laps in the RB10, he did not set a timed lap.