Barcelona has typically been a pivotal race for Formula 1 teams' development programmes, but while there were plenty of updates on display the anticipated raft of new parts did not materialise this time.
Unusually, the track has not been used for winter testing and the chance to run here outside of a grand prix weekend next week has perhaps led teams to be more conservative with untested components.
The track features a range of corners, a long straight and an abrasive surface. It's the mix of long turns and the track texture that is the most challenging for teams, and if a car works well around here it is normally good at most circuits.
Good aero is required for speed in these turns and then the front left tyre is worked hard, leading to premature wear. For this year, the high torque output of the power units, allied to warmer than expected temperatures, could lead also to rear tyre degradation in Sunday's race.
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