Lewis Hamilton edged out Mercedes team-mate Nico Rosberg by just 0.033s as the squad dominated the opening practice session for the British Grand Prix.
Hamilton and Rosberg, who collided on the last lap in Austria five days ago, traded quick times at a cool and cloudy Silverstone until the Briton moved ahead with a 1:31.654 on the Medium tyres.
Hamilton’s lap was quicker than the time he set en-route to pole position at Silverstone last year.
Force India’s Nico Hülkenberg was Mercedes’ closest challenger, albeit 0.838s behind Hamilton, who is chasing his fourth British Grand Prix victory this weekend.
Sebastian Vettel placed fourth having completed an initial installation lap with Ferrari’s revised halo protection device fitted to his SF16-H.
Daniel Ricciardo and Max Verstappen were fifth and seventh for Red Bull, split by Ferrari’s Kimi Räikkönen, whose 2017 deal was announced earlier on Friday.
Sergio Pérez collected eighth, ahead of the quartet from Toro Rosso and McLaren, with Carlos Sainz Jr. leading Fernando Alonso, Daniil Kvyat and Jenson Button.
Williams was a low-key 13th and 14th, with Valtteri Bottas ahead of Felipe Massa, as Romain Grosjean placed 15th for Haas.
Jolyon Palmer geared up for his home race in 16th place, ahead of Felipe Nasr, while Ferrari protégé Charles Leclerc received his first run out for Haas.
Leclerc, who currently leads the GP3 standings, placed 18th via a spin at Village early in the session.
Esteban Ocon completed his second practice session with Renault and clocked the 19th best time, while Marcus Ericsson was 20th after spending a lengthy amount of time in the garage.
Manor driver Pascal Wehrlein and Rio Haryanto brought up the rear of the pack.