Formula 1's sole tyre supplier Pirelli was able to log 285 laps of Paul Ricard's 3.5km layout on Monday as part of a wet tyre test, with Red Bull, Ferrari and McLaren all present.
The circuit, located in Southern France, was doused by sprinklers with Daniel Ricciardo, Kimi Raikkonen and youngster Stoffel Vandoorne completing 10-lap runs at 10 second intervals.
The two-day test has been organised to assist Pirelli with its wet tyre development.
Ricciardo set the fastest time for Red Bull as teams used 2015-specification cars, though the RB11 was run in a revised livery following the departure of title sponsor Infiniti.
Vandoorne caused running to be disrupted during the afternoon when his MP4-30 stopped on track.
The test continues on Tuesday, with Daniil Kvyat and Sebastian Vettel taking over duties at Red Bull and Ferrari respectively.
The FIA has opened up the regulations to allow Pirelli to conduct six two-day tyre tests this year.
Official pre-season testing will begin at the Circuit de Barcelona-Catalunya on February 22.