Formula 1's condensed pre-season testing schedule for 2016 has forced the teams to carry out a lot of work over eight days in a two-week period.
That hasn't left a lot of room for playing games with your opposition - unless you're Mercedes - so on the whole it's meant we have been given a lot of indications about what to expect when the season start in Australia in a fortnight.
But it wasn't just on-track at Barcelona that we were learning what's in store for 2016. As F1 continues to do itself more harm than good away from the circuit, the strains of testing led to a few cracks showing that are likely to be running themes throughout this year.