From 21 to 23 februari the F1 teams will have their only testing days on an F1 track from the calendar.
schedule:
https://www.formula1.com/en/racing/2...n-Testing.html
track: Bahrain International Circuit
So lots of cars with flowviz and sensor racks to be seen.
However I don't expect the cars to go full out, so the fastest cars in the testing days might not win the upcoming Bahrain GP (held march 2nd)