Three Formula 1 teams have remained at Circuit de Barcelona-Catalunya this week in the aftermath of Sunday's Spanish Grand Prix to test Pirelli's 18-inch tyres set for 2022.
Alpine, Alfa Romeo and Red Bull will take part in the test hosted by the F1's exclusive tyre supplier on Tuesday and Wednesday.
Alfa Romeo and Red Bull teams will be on track for both days, while the Alpine team will only be around for the first day of proceedings.
This will be the fifth test on 18-inch tires this year, the fourth on slick tyres.
Earlier this year, Ferrari kicked off Pirelli's testing program with Charles Leclerc and Carlos Sainz in February at the Jerez de la Frontera circuit and at the Bahrain circuit in March where the Alpine team also took part.
At Imola last month, the Mercedes took part in a two-day test with
Valtteri Bottas and Lewis Hamilton. The reigning F1 World Champion will be in action for Pirelli at the end of May at Paul Ricard Circuit for wet weather tyre testing.