Fernando Alonso set the fastest time on the third day of second pre-season test in Barcelona.
The Spaniard set his time on the soft tyre and completed 97 laps. His time was set in the morning session and remained unchallenged as many teams decided to complete race simulations in the afternoon.
Nico Hulkenberg set the second fastest time for Sauber, with his best effort coming on the soft tyre in the morning session. Romain Grosjean set the third fastest time in the Lotus after completing 119 laps and a race simulation.
Nico Rosberg set the fourth fastest time ahead of Pastor Maldonado in the Williams who set the fifth fastest time. Valtteri Bottas took over from Maldonado to set the sixth fastest time of the day after 68 laps.
Jenson Button struggled in the McLaren only setting the seventh fastest time after 71 laps.
Adrian Sutil returned to F1 for Force India completing 78 laps and setting the eighth fastest time on the soft tyre. His Thursday time was almost one second faster than the time set by Paul di Resta on Wednesday.
Behind him Mark Webber completed 108 laps and set the ninth fastest time ahead of Jean-Eric Vergne who managed 106 laps and 10th place.
Max Chilton set the 11th fastest time in the Marussia whilst Giedo van der Garde set the 12th fastest time after completing 93 laps for Caterham.
Tomorrow Jules Bianchi will take over from Sutil and drive the Force India as the pair compete for the second seat at the team.
The weather forecast for tomorrows session is rain.
It should be remembered that the times set in testing are unlikely to be a true gauge of each cars performance.
For full times, laps completed and tyre compounds see http://www.autosport.com/news/report.php/id/105659