Formula 1's five-day private test at Barcelona is a very particular scenario in many ways - including in how teams are going about their mileage.
With each team allowed a maximum of three days of running across the Monday-to-Friday event, there's naturally a mix of strategies in play - informed by car build logistics, weather and other considerations.
Here's your guide to who's running when.
Mercedes (151 laps)
Red Bull (107 laps)
Racing Bulls (88 laps)
Haas (154 laps)
Audi (27 laps)
Alpine (60 laps)
Cadillac (44 laps)
Red Bull (78 laps)
Ferrari (121 laps)
Monday - no
Tuesday - no
Wednesday - yes
Thursday - TBC
Friday - TBC
Monday - 151 laps (Antonelli 56, Russell 95)
Tuesday - no
Wednesday - TBC
Thursday - TBC
Friday - TBC
Monday - 107 laps (Hadjar 107)
Tuesday - 78 laps (Hadjar 51, Verstappen 27)
Wednesday - TBC
Thursday - TBC
Friday - TBC
Monday - no
Tuesday - 121 laps (Leclerc 64, Hamilton 57)
Wednesday - TBC
Thursday - TBC
Friday - TBC
Williams is not attending the test.
Monday - 88 laps (Lawson 88)
Tuesday - no
Wednesday - TBC
Thursday - TBC
Friday - TBC
Monday - no
Tuesday - no
Wednesday - no
Thursday - TBC
Friday - TBC
Monday - 154 laps (Ocon 154)
Tuesday - no
Wednesday - TBC
Thursday - TBC
Friday - TBC
Monday - 27 laps (Bortoleto 27)
Tuesday - no
Wednesday - TBC
Thursday - TBC
Friday - TBC
Monday - 60 laps (Colapinto 60)
Tuesday - no
Wednesday - TBC
Thursday - TBC
Friday - TBC
Monday - 44 laps (Bottas 33, Perez 11)
Tuesday - no
Wednesday - yes
Thursday - TBC
Friday - TBC