Lewis Hamilton has posted the fastest time on the penultimate day of pre-season testing at Barcelona.
The Mercedes driver set a time of 1:20.558 in the morning session, which could not be beaten in the afternoon.
Ferrari's Felipe Massa was fastest in the second session of the day, posting a lap time of 1:21.266, with Adrian Sutil third fastest.
Romain Grosjean returned to the Lotus car in the afternoon after a bout of food poisoning kept Kimi Raikkonen off the track.
Caterham's Giedo van der Garde completed 126 laps, the most in the field, but set the slowest time.
Tomorrow will be the final chance for teams to test their 2013 cars on the track ahead of the first practice session for the Australian Grand Prix.
