Pre-season testing is all about correlating figures and measuring real world data out on the race track.
So what is Sergio Perez trying to explain to Red Bull team principal Christian Horner here?
Can you come up with the best caption for this picture? Post your funniest suggestion in the comments below.
A selection of the best will feature in a future edition of the RaceFans Round-up.
Caption Competition
- Caption Competition 179: Step into the light
- Caption Competition 178: Vettel Stroll sneak a peek
- Caption Competition 177: Block party
- Caption Competition 176: Ocon the court
- Caption Competition 175: Gasly goes for a bullseye
Browse all Caption Competitions