The long wait from the Abu Dhabi Grand Prix last November to the first 2015 cars turning a wheel in anger came to an end this week, as eight teams rolled into Spain to kick off pre-season testing at Jerez.
Every year the teams declare that the former grand prix venue offers little valuable running, but every year they are enticed back. Perhaps the lack of revealing data is a convenience at this early stage of their cars' development.
Still, four days of getting to see the cars up close on track, and speaking to paddock figures who know more than they often care to let on in public, always reveals some interesting pointers at this time of year.