Pirelli are confident their new wet compound tyres will perform better in Formula One in 2016.
F1's sole tyre manufacturer conducted a two-day test at the Paul Ricard circuit in southern France to put their new modification for extreme wet weather under the microscope.
With the help of Ferrari, Red Bull and McLaren almost 1500 miles were covered in total, Pirelli looking to assess the performance when on-track conditions improve and to reduce aquaplaning.
"The first impression is we have a good compound for extreme wet and also some modifications of the tread pattern are working well," Pirelli racing manager Mario Isola was quoted as saying by Autosport.
"This is the first feeling. I don't want to sell this as a final result of the test, but we are confident there is something positive in the different prototypes we tested.
"Of course, if we have a new product from this test then we will introduce it during the season, as soon as possible."
Although times were irrelevant, Ferrari's Sebastian Vettel was fastest as he completed 134 laps.