Pierre Gasly went quickest in the first free practice session on Friday ahead of the 2019 Formula One British Grand Prix at Silverstone, while Valtteri Bottas led a Mercedes one-two in the second session.
The Red Bull driver set a time of one minute, 27.173 seconds, ahead of Bottas in the first session. The Fin clocked a time of one minute, 26.732 seconds in the second session, narrowly beating Lewis Hamilton and the Ferrari duo of Charles Leclerc and Sebastian Vettel.
Gasly's team-mate Max Verstappen only managed seventh place in the second session, behind rising star Lando Norris of McLaren.
Here are the times from the second session:
While Bottas had the advantage over his team-mate in one-lap pace, Hamilton impressed the most in the long runs that dominated the second session. On the medium tyre, the Brit averaged a time of one minute, 30.9 seconds, putting him well ahead of the field.
The medium compound caused quite a few problems, with both Verstappen and Leclerc complaining over the radio.
Renault did not have a great second session, with both cars placing well outside the top 10 and Daniel Ricciardo stopping on track with an engine issue:
The younger drivers again stole the show in the second session, with Norris beating Verstappen and both Carlos Sainz and Alex Albon placing in the top 10.
But no one will feel better about their Friday performance than Gasly, who needed a strong outing in the worst way. The Frenchman has only finished in the top five of a race once this season and has routinely been beaten by team-mate Verstappen. The tables were turned on Friday, however, an encouraging sight for the 23-year-old.
Here's the classification:
Silverstone's track was resurfaced in June, and there were several incidents as the drivers struggled to get to grips with the new asphalt.
Haas' Romain Grosjean spun and crashed at the end of the pit lane:
George Russell of Williams also spun on to the grass, while Norris went for a spin on the final corner.
A power-unit issue for Kimi Raikonnen also temporarily brought out the red flag. He had to come to a stop on the track with his Alfa Romeo smoking:
An error from Bottas saw him drive into the wrong pit box, but that didn't stop him setting the early standard as the drivers started to put times on the board.
He quickly became locked in a duel with team-mate Hamilton and Ferrari's Vettel atop the timesheet.
Some excellent late runs from the Red Bull duo saw them muscle in at the top, though, with Gasly taking P1 with his final effort.