Williams F1 Team
Felipe Massa set the fastest time on the penultimate day of testing in Bahrain.
Massa's time of 1:33.258 was the quickest of the seven days so far in the Middle East as world champion Sebastian Vettel failed to complete a single lap in the Red Bull RB10.
Vettel headed out of the garage three hours into the morning session but crawled to a halt at turn four. Vettel attempted to make it out later in the day but the car stopped at the end of the pit lane. He did not reappear.
Nico Rosberg was second for Mercedes, ahead of Ferrari's Kimi Raikkonen.
Kevin Magnussen and Daniil Kvyat rounded out the top five.
Nico Hulkenberg was sixth for Force India, with Jules Bianchi in seventh.
Marcus Ericsson was eighth, ahead of Romain Grosjean. The Lotus driver encountered electrical issues during the morning session which curtailed his running.
Adrian Sutil managed one lap before smoke began pouring from his Sauber C33, ending his running after just a solitary lap.
