Mercedes driver Valtteri Bottas and reserve George Russell have completed Pirelli’s two-day wet-weather tyre testing programme at returning French Grand Prix venue Paul Ricard.
F2 racer and Mercedes junior Russell completed 123 laps on an artificially watered circuit on Tuesday, before Bottas took over duties on Wednesday, adding 130 laps.
The pair trialled both the Intermediate and Full Wet tyres as Pirelli continues to hone its products for future use.
Under current regulations, Pirelli is permitted to undertake up to 25 days of private running, with all 10 teams in action through the course of the season, supplying current-year cars.
Data gathered at the various tests is shared between all teams to ensure that no-one gains any advantage, while Pirelli operates the run plan each day.
Teams are also barred from running aerodynamic updates at the tests.
Pirelli will next be in action at Vallelunga next month with Toro Rosso.
