LONDON (Dispatches) – Red Bull's Pierre Gasly was the surprise pace-setter in an incident-packed first practice session at the British Grand Prix at Silverstone.
The Frenchman, who has struggled in his first season at Red Bull, went 0.476 seconds clear of Mercedes' Valtteri Bottas with a lap late in the session.
Red Bull's Max Verstappen was third and Mercedes' Lewis Hamilton fourth as several drivers had incidents.
Haas' Romain Grosjean had the worst with a crash in the pit lane and spin.
The Frenchman, who had persuaded Haas to let him try the car in its specification from the first race of the season in a bid to understand their struggles, lost control leaving the pits for the first time because he had too much throttle on when he released the pit lane speed limit.
*********Second practice is live on BBC Radio 5 Live Sports Extra from 14:00 BST