First free practice session tormented by rain at the Silverstone circuit, where the F1 Grand Prix will take place on Sunday.
A violent shower hit the track just as the first riders were leaving.
Only 10 have set a time.
The best is Valtteri Bottas (Alfa Romeo) in 1'42 "249, followed by the Mercedes of Lewis Hamilton (+0.532), third the Ferrari of Carlos Sainz (+0.718), ahead of teammate Charles Leclerc (+1" 552).
Everyone came out of the pits on intermediate tires, then moved on to the soft ones, but few completed more than two or three laps, waiting to see how the weather would evolve.
The most assiduous was Hamilton, with four laps.
