Sebastian Vettel topped the times on the second day of testing at Circuit de Catalunya, Barcelona. His time set just on Pirelli's new ultra-softs before noon remained best as teams focused on longer runs in the afternoon.
Due to the reduced number of testing days this year, teams are attempting to get more done on a single day, resulting in a massive amount of laps completed by most cars. A new all-time record was set, predictably, by Mercedes as Nico Rosberg completed 172 laps, another 14 more than Hamilton's record from the day before.
He wasn't the only one doing a lot of work however, as 8 from the 11 cars today on track completed more than 100 laps.
Renault Sport F1 was not among those active teams, as Jolyon Palmer felt his car come to a 70 minutes into the afternoon session. A bit later, he reported that was the end of the day for him, stuck on just 42 laps, but still more than what they managed the day before.