Lewis Hamilton was fastest for Mercedes in second practice for the Spanish Grand Prix.
Hamilton posted a time of 1:26.852 on a set of the medium compound Pirellis to beat Ferrari’s Sebastian Vettel to the top of the timesheets by four tenths of a second.
Nico Rosberg, fastest in the morning, was forced to settle for third in the second Mercedes, some three tenths shy of Vettel on the same medium rubber.
Kimi Raikkonen was fourth, a tenth of a second clear of Daniil Kvyat, running in the upgraded Red Bull RB11.
Max Verstappen ended the day sixth for Toro Rosso, ahead of Jenson Button, who impressed in the newly liveried McLaren-Honda despite complaints of vibrations when changing into third gear.
Williams racer Valtteri Bottas was eighth quickest after sitting out the opening session for the team’s test driver Susie Wolff.
Carlos Sainz Jr. and Felipe Massa rounded out the top ten, ahead of Fernando Alonso in 11th for McLaren.
Romain Grosjean caused a brief red flag after a spectacular engine cover failure on the start-finish straight early in the session but rallied to finish 12th fastest.
Daniel Ricciardo sat out most of the afternoon following an engine change and managed just a handful of laps on route to 13th on the leaderboard.
Pastor Maldonado was 14th in the second Lotus, ahead of the two Saubers of Felipe Nasr and Marcus Ericsson.
Nico Hulkenberg and Sergio Perez were 17th and 18th in a low-key practice for Force India.
Will Stevens and Roberto Merhi rounded out the order for Manor Marussia, with the Briton surviving a late scare at Turn 5.
Image courtesy of Daimler