Which teams completed the most laps on the final day of testing?

Mercedes finished off their Barcelona test by setting the benchmark in terms of pace and reliability on the final day.

With Lewis Hamilton and George Russell claiming a 1-2 on the timesheets, their W13 also put in 160 laps of the circuit between the two drivers. This took the Mercedes team to just under 400 laps in total for the three-day test.

McLaren may have had a nondescript day in terms of pace on track, but the Woking-based team logged 138 laps between Lando Norris and Daniel Ricciardo – a lap count that was only bested by Mercedes.

Ferrari and Red Bull also had strong days, finishing up with 136 and 133 laps respectively.

Five teams failed to put in a full Grand Prix distance on the final day, due to various issues. Alfa Romeo managed 51 laps, as Guanyu Zhou had two on-track stoppages in the morning session.

Aston Martin completed just 48 laps, with Sebastian Vettel breaking down on track before the lunch break – the resulting oil leak proving terminal to the team's programme.

AlphaTauri finished with 40 laps, but it was a driver mistake that cost them track time as Pierre Gasly crashed during the morning session.

Alpine clocked just 12 laps, with Fernando Alonso before suffering a catastrophic hydraulic failure that ruled them out for the rest of the day, while Haas' Nikita Mazepin had only done nine laps of the track when the VF-22 suffered a terminal leak that the team couldn't fix quickly enough to get back on track.

Hamilton and Albon the mileage kings on Friday

None of the drivers managed to break into triple-digit lap counts on Friday, with Hamilton and Alex Albon leading the way on 94 laps apiece.

Carlos Sainz was also a strong performer as he put in 92 laps, while Ricciardo managed 86 for McLaren.

For most of the rest of the field, it was a Grand Prix distance or less, with Mazepin doing the fewest laps – just nine.